Energy dependence of the differences between the quark and gluon jet fragmentation

P. Abreu, W. Adam, T. Adye, E. Agasi, I. Ajinenko, R. Aleksan, G. D. Alekseev, R. Alemany, P. P. Allport, S. Almehed, S. J. Alvsvaag, U. Amaldi, S. Amato, A. Andreazza, M. L. Andrieux, P. Antilogus, W. D. Apel, Y. Arnoud, B. Åsman, J. E. AugustinA. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barate, D. Y. Bardin, A. Baroncelli, O. Barring, J. A. Barrio, W. Bartl, M. J. Bates, M. Battaglia, M. Baubillier, J. Baudot, K. H. Becks, M. Begalli, P. Beilliere, Y. Belokopytov, K. Belous, A. C. Benvenuti, M. Berggren, D. Bertrand, F. Bianchi, M. Bigi, M. S. Bilenky, P. Billoir, D. Bloch, M. Blume, S. Blyth, T. Bolognese, M. Bonesini, W. Bonivento, P. S L Booth, G. Borisov, C. Bosio, S. Bosworth, O. Botner, B. Bouquet, C. Bourdarios, T. J V Bowcock, M. Bozzo, P. Branchini, K. D. Brand, T. Brenke, R. A. Brenner, C. Bricman, L. Brillault, R. C A Brown, P. Bruckman, J. M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, A. Buys, S. Cabrera, M. Caccia, M. Calvi, A. J. Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, K. Cankocak, F. Cao, F. Carena, P. Carrilho, L. Carroll, C. Caso, M. V. Castillo Gimenez, A. Cattai, F. R. Cavallo, L. Cerrito, V. Chabaud, Ph Charpentier, L. Chaussard, J. Chauveau, P. Checchia, G. A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, V. Cindro, P. Collins, J. L. Contreras, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H. B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, E. Dahl-Jensen, J. Dahm, B. Dalmagne, M. Dam, G. Damgaard, P. D. Dauncey, M. Davenport, W. Da Silva, C. Defoix, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, C. De La Vaissiere, B. De Lotto, A. De Min, L. De Paula, C. De Saint-Jean, H. Dijkstra, L. Di Ciaccio, F. Djama, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, K. A. Drees, M. Dris, Y. Dufour, F. Dupont, D. Edsall, R. Ehret, G. Eigen, T. Ekelof, G. Ekspong, M. Elsing, J. P. Engel, N. Ershaidat, B. Erzen, M. Espirito Santo, E. Falk, D. Fassouliotis, M. Feindt, A. Ferrer, T. A. Filippas, A. Firestone, P. A. Fischer, H. Foeth, E. Fokitis, F. Fontanelli, F. Formenti, B. Franek, P. Frenkiel, D. C. Fries, A. G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, U. Gasparini, Ph Gavillet, E. N. Gazis, D. Gele, J. P. Gerber, L. Gerdyukov, M. Gibbs, R. Gokieli, B. Golob, G. Gopal, L. Gorn, M. Gorski, Y. Gouz, V. Gracco, E. Graziani, G. Grosdidier, K. Grzelak, S. Gumenyuk, P. Gunnarsson, M. Gunther, J. Guy, F. Hahn, S. Hahn, A. Hallgren, K. Hamacher, W. Hao, F. J. Harris, V. Hedberg, R. Henriques, J. J. Hernandez, P. Herquet, H. Herr, T. L. Hessing, E. Higon, H. J. Hilke, T. S. Hill, S. O. Holmgren, P. J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, J. N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E. K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, M. Kaiser, F. Kapusta, K. Karafasoulis, M. Karlsson, E. Karvelas, S. Katsanevas, E. C. Katsoufis, R. Keranen, B. A. Khomenko, N. N. Khovanski, B. King, N. J. Kjaer, O. Klapp, H. Klein, A. Klovning, P. Kluit, B. Koene, P. Kokkinias, M. Koratzinos, K. Korcyl, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, P. H. Kramer, M. Krammer, C. Kreuter, I. Kronkvist, Z. Krumstein, W. Krupinski, P. Kubinec, W. Kucewicz, K. Kurvinen, C. Lacasta, I. Laktineh, S. Lamblot, J. W. Lamsa, L. Lanceri, D. W. Lane, P. Langefeld, V. Lapin, I. Last, J. P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, C. K. Legan, R. Leitner, Y. Lemoigne, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, R. Lindner, A. Lipniacka, I. Lippi, B. Loerstad, J. G. Loken, J. M. Lopez, M. A. Lopez Aguera, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, G. Maehlum, V. Malychev, F. Mandl, J. Marco, B. Marechal, M. Margoni, J. C. Marin, C. Mariotti, A. Markou, T. Maron, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti I Garcia, J. Masik, F. Matorras, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, J. Medbo, C. Meroni, S. Meyer, W. T. Meyer, M. Michelotto, E. Migliore, L. Mirabito, W. A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M. R. Monge, P. Morettini, H. Mueller, L. M. Mundim, W. J. Murray, B. Muryn, G. Myatt, F. Naraghi, F. L. Navarria, S. Navas, K. Nawrocki, P. Negri, W. Neumann, N. Neumeister, R. Nicolaidou, B. S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, P. Niss, A. Nomerotski, A. Normand, W. Oberschulte-Beckmann, V. Obraztsov, A. G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, P. Pages, H. Palka, Th D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, A. Passeri, M. Pegoraro, L. Peralta, H. Pernegger, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, M. Petrovyck, H. T. Phillips, G. Piana, F. Pierre, M. Pimenta, M. Pindo, S. Plaszczynski, O. Podobrin, M. E. Pol, G. Polok, P. Poropat, V. Pozdniakov, M. Prest, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P. N. Ratoff, A. L. Read, M. Reale, P. Rebecchi, N. G. Redaelli, M. Regler, D. Reid, P. B. Renton, L. K. Resvanis, F. Richard, J. Richardson, J. Ridky, G. Rinaudo, I. Ripp, A. Romero, I. Roncagliolo, P. Ronchese, L. Roos, E. I. Rosenberg, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, J. Sanchez, M. Sannino, M. Schimmelpfennig, H. Schneider, U. Schwickerath, M. A E Schyns, G. Sciolla, F. Scuri, P. Seager, Y. Sedykh, A. M. Segar, A. Seitz, R. Sekulin, R. C. Shellard, I. Siccama, P. Siegrist, S. Simonetti, F. Simonetto, A. N. Sisakian, B. Sitar, T. B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G. R. Smith, R. Sosnowski, D. Souza-Santos, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, C. Stanescu, S. Stapnes, I. Stavitski, F. Stichelbaut, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, J. P. Tavernet, O. Tchikilev, A. Tilquin, J. Timmermans, L. G. Tkatchev, T. Todorov, D. Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, W. Trischuk, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M. L. Turluer, I. A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G. W. Van Apeldoorn, P. Van Dam, W. K. Van Doninck, J. Van Eldik, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L. S. Vertogradov, D. Vilanova, P. Vincent, L. Vitale, E. Vlasov, A. S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, F. Waldner, M. Weierstall, P. Weilhammer, C. Weiser, A. M. Wetherell, D. Wicke, J. H. Wickens, M. Wielers, G. R. Wilkinson, W. S C Williams, M. Winter, M. Witek, K. Woschnagg, K. Yip, O. Yushchenko, F. Zach, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N. I. Zimin, M. Zito, D. Zontar, R. Zuberi, G. C. Zucchelli, G. Zumerle

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b quark jets. Unbiased quark jets came from events with two jets plus one photon. Quark and gluon jet properties in different energy ranges were compared for the first time within the same detector. Quark and gluon jets of nearly the same energy in symmetric three jet event topologies were also compared. Using three independent methods, the average value of the ratio of the mean charged multiplicities of gluon and quark jets is 〈 r 〉= 1.241 ± 0.015 (stat.) ± 0.025 (syst.). Gluon jets are broader and produce fragments with a softer energy spectrum than quark jets of equivalent energy. The string effect has been observed in fully symmetric three jet events. The measured ratio Rγ of the charged particle flow in the qq̄ inter-jet region of the qq̄g and qq̄γ samples agrees with the perturbative QCD expectation. The dependence of the mean charged multiplicity on the hadronic center-of-mass energy was analysed in photon plus n-jet events. The value for αs(MZ) determined from these data using a QCD prediction with corrections at leading and next-to-leading order is αs(MZ) = 0.116 ± 0.003 (stat.) ± 0.009 (syst.).

Original languageEnglish
Pages (from-to)179-195
Number of pages17
JournalZeitschrift für Physik C Particles and Fields
Volume70
Issue number2
Publication statusPublished - Apr 1996

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fragmentation
quarks
energy
quantum chromodynamics
detectors
photons
center of mass
charged particles
energy spectra
strings
bosons
topology
fragments

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ... Zumerle, G. (1996). Energy dependence of the differences between the quark and gluon jet fragmentation. Zeitschrift für Physik C Particles and Fields, 70(2), 179-195.

Energy dependence of the differences between the quark and gluon jet fragmentation. / Abreu, P.; Adam, W.; Adye, T.; Agasi, E.; Ajinenko, I.; Aleksan, R.; Alekseev, G. D.; Alemany, R.; Allport, P. P.; Almehed, S.; Alvsvaag, S. J.; Amaldi, U.; Amato, S.; Andreazza, A.; Andrieux, M. L.; Antilogus, P.; Apel, W. D.; Arnoud, Y.; Åsman, B.; Augustin, J. E.; Augustinus, A.; Baillon, P.; Bambade, P.; Barao, F.; Barate, R.; Bardin, D. Y.; Baroncelli, A.; Barring, O.; Barrio, J. A.; Bartl, W.; Bates, M. J.; Battaglia, M.; Baubillier, M.; Baudot, J.; Becks, K. H.; Begalli, M.; Beilliere, P.; Belokopytov, Y.; Belous, K.; Benvenuti, A. C.; Berggren, M.; Bertrand, D.; Bianchi, F.; Bigi, M.; Bilenky, M. S.; Billoir, P.; Bloch, D.; Blume, M.; Blyth, S.; Bolognese, T.; Bonesini, M.; Bonivento, W.; Booth, P. S L; Borisov, G.; Bosio, C.; Bosworth, S.; Botner, O.; Bouquet, B.; Bourdarios, C.; Bowcock, T. J V; Bozzo, M.; Branchini, P.; Brand, K. D.; Brenke, T.; Brenner, R. A.; Bricman, C.; Brillault, L.; Brown, R. C A; Bruckman, P.; Brunet, J. M.; Bugge, L.; Buran, T.; Burgsmueller, T.; Buschmann, P.; Buys, A.; Cabrera, S.; Caccia, M.; Calvi, M.; Camacho Rozas, A. J.; Camporesi, T.; Canale, V.; Canepa, M.; Cankocak, K.; Cao, F.; Carena, F.; Carrilho, P.; Carroll, L.; Caso, C.; Castillo Gimenez, M. V.; Cattai, A.; Cavallo, F. R.; Cerrito, L.; Chabaud, V.; Charpentier, Ph; Chaussard, L.; Chauveau, J.; Checchia, P.; Chelkov, G. A.; Chen, M.; Chierici, R.; Chliapnikov, P.; Chochula, P.; Chorowicz, V.; Chudoba, J.; Cindro, V.; Collins, P.; Contreras, J. L.; Contri, R.; Cortina, E.; Cosme, G.; Cossutti, F.; Crawley, H. B.; Crennell, D.; Crosetti, G.; Cuevas Maestro, J.; Czellar, S.; Dahl-Jensen, E.; Dahm, J.; Dalmagne, B.; Dam, M.; Damgaard, G.; Dauncey, P. D.; Davenport, M.; Da Silva, W.; Defoix, C.; Deghorain, A.; Della Ricca, G.; Delpierre, P.; Demaria, N.; De Angelis, A.; De Boer, W.; De Brabandere, S.; De Clercq, C.; De La Vaissiere, C.; De Lotto, B.; De Min, A.; De Paula, L.; De Saint-Jean, C.; Dijkstra, H.; Di Ciaccio, L.; Djama, F.; Dolbeau, J.; Donszelmann, M.; Doroba, K.; Dracos, M.; Drees, J.; Drees, K. A.; Dris, M.; Dufour, Y.; Dupont, F.; Edsall, D.; Ehret, R.; Eigen, G.; Ekelof, T.; Ekspong, G.; Elsing, M.; Engel, J. P.; Ershaidat, N.; Erzen, B.; Espirito Santo, M.; Falk, E.; Fassouliotis, D.; Feindt, M.; Ferrer, A.; Filippas, T. A.; Firestone, A.; Fischer, P. A.; Foeth, H.; Fokitis, E.; Fontanelli, F.; Formenti, F.; Franek, B.; Frenkiel, P.; Fries, D. C.; Frodesen, A. G.; Fruhwirth, R.; Fulda-Quenzer, F.; Fuster, J.; Galloni, A.; Gamba, D.; Gandelman, M.; Garcia, C.; Garcia, J.; Gaspar, C.; Gasparini, U.; Gavillet, Ph; Gazis, E. N.; Gele, D.; Gerber, J. P.; Gerdyukov, L.; Gibbs, M.; Gokieli, R.; Golob, B.; Gopal, G.; Gorn, L.; Gorski, M.; Gouz, Y.; Gracco, V.; Graziani, E.; Grosdidier, G.; Grzelak, K.; Gumenyuk, S.; Gunnarsson, P.; Gunther, M.; Guy, J.; Hahn, F.; Hahn, S.; Hallgren, A.; Hamacher, K.; Hao, W.; Harris, F. J.; Hedberg, V.; Henriques, R.; Hernandez, J. J.; Herquet, P.; Herr, H.; Hessing, T. L.; Higon, E.; Hilke, H. J.; Hill, T. S.; Holmgren, S. O.; Holt, P. J.; Holthuizen, D.; Hoorelbeke, S.; Houlden, M.; Hrubec, J.; Huet, K.; Hultqvist, K.; Jackson, J. N.; Jacobsson, R.; Jalocha, P.; Janik, R.; Jarlskog, Ch; Jarlskog, G.; Jarry, P.; Jean-Marie, B.; Johansson, E. K.; Jonsson, L.; Jonsson, P.; Joram, C.; Juillot, P.; Kaiser, M.; Kapusta, F.; Karafasoulis, K.; Karlsson, M.; Karvelas, E.; Katsanevas, S.; Katsoufis, E. C.; Keranen, R.; Khomenko, B. A.; Khovanski, N. N.; King, B.; Kjaer, N. J.; Klapp, O.; Klein, H.; Klovning, A.; Kluit, P.; Koene, B.; Kokkinias, P.; Koratzinos, M.; Korcyl, K.; Kostioukhine, V.; Kourkoumelis, C.; Kouznetsov, O.; Kramer, P. H.; Krammer, M.; Kreuter, C.; Kronkvist, I.; Krumstein, Z.; Krupinski, W.; Kubinec, P.; Kucewicz, W.; Kurvinen, K.; Lacasta, C.; Laktineh, I.; Lamblot, S.; Lamsa, J. W.; Lanceri, L.; Lane, D. W.; Langefeld, P.; Lapin, V.; Last, I.; Laugier, J. P.; Lauhakangas, R.; Leder, G.; Ledroit, F.; Lefebure, V.; Legan, C. K.; Leitner, R.; Lemoigne, Y.; Lemonne, J.; Lenzen, G.; Lepeltier, V.; Lesiak, T.; Lindner, R.; Lipniacka, A.; Lippi, I.; Loerstad, B.; Loken, J. G.; Lopez, J. M.; Lopez Aguera, M. A.; Loukas, D.; Lutz, P.; Lyons, L.; MacNaughton, J.; Maehlum, G.; Malychev, V.; Mandl, F.; Marco, J.; Marechal, B.; Margoni, M.; Marin, J. C.; Mariotti, C.; Markou, A.; Maron, T.; Martinez-Rivero, C.; Martinez-Vidal, F.; Marti I Garcia, S.; Masik, J.; Matorras, F.; Matteuzzi, C.; Matthiae, G.; Mazzucato, M.; Mc Cubbin, M.; Mc Kay, R.; Mc Nulty, R.; Medbo, J.; Meroni, C.; Meyer, S.; Meyer, W. T.; Michelotto, M.; Migliore, E.; Mirabito, L.; Mitaroff, W. A.; Mjoernmark, U.; Moa, T.; Moeller, R.; Moenig, K.; Monge, M. R.; Morettini, P.; Mueller, H.; Mundim, L. M.; Murray, W. J.; Muryn, B.; Myatt, G.; Naraghi, F.; Navarria, F. L.; Navas, S.; Nawrocki, K.; Negri, P.; Neumann, W.; Neumeister, N.; Nicolaidou, R.; Nielsen, B. S.; Nieuwenhuizen, M.; Nikolaenko, V.; Niss, P.; Nomerotski, A.; Normand, A.; Oberschulte-Beckmann, W.; Obraztsov, V.; Olshevski, A. G.; Onofre, A.; Orava, R.; Osterberg, K.; Ouraou, A.; Paganini, P.; Paganoni, M.; Pages, P.; Palka, H.; Papadopoulou, Th D.; Papageorgiou, K.; Pape, L.; Parkes, C.; Parodi, F.; Passeri, A.; Pegoraro, M.; Peralta, L.; Pernegger, H.; Pernicka, M.; Perrotta, A.; Petridou, C.; Petrolini, A.; Petrovyck, M.; Phillips, H. T.; Piana, G.; Pierre, F.; Pimenta, M.; Pindo, M.; Plaszczynski, S.; Podobrin, O.; Pol, M. E.; Polok, G.; Poropat, P.; Pozdniakov, V.; Prest, M.; Privitera, P.; Pukhaeva, N.; Pullia, A.; Radojicic, D.; Ragazzi, S.; Rahmani, H.; Rames, J.; Ratoff, P. N.; Read, A. L.; Reale, M.; Rebecchi, P.; Redaelli, N. G.; Regler, M.; Reid, D.; Renton, P. B.; Resvanis, L. K.; Richard, F.; Richardson, J.; Ridky, J.; Rinaudo, G.; Ripp, I.; Romero, A.; Roncagliolo, I.; Ronchese, P.; Roos, L.; Rosenberg, E. I.; Rosso, E.; Roudeau, P.; Rovelli, T.; Ruckstuhl, W.; Ruhlmann-Kleider, V.; Ruiz, A.; Saarikko, H.; Sacquin, Y.; Sadovsky, A.; Sajot, G.; Salt, J.; Sanchez, J.; Sannino, M.; Schimmelpfennig, M.; Schneider, H.; Schwickerath, U.; Schyns, M. A E; Sciolla, G.; Scuri, F.; Seager, P.; Sedykh, Y.; Segar, A. M.; Seitz, A.; Sekulin, R.; Shellard, R. C.; Siccama, I.; Siegrist, P.; Simonetti, S.; Simonetto, F.; Sisakian, A. N.; Sitar, B.; Skaali, T. B.; Smadja, G.; Smirnov, N.; Smirnova, O.; Smith, G. R.; Sosnowski, R.; Souza-Santos, D.; Spassov, T.; Spiriti, E.; Sponholz, P.; Squarcia, S.; Stanescu, C.; Stapnes, S.; Stavitski, I.; Stichelbaut, F.; Stocchi, A.; Strauss, J.; Strub, R.; Stugu, B.; Szczekowski, M.; Szeptycka, M.; Tabarelli, T.; Tavernet, J. P.; Tchikilev, O.; Tilquin, A.; Timmermans, J.; Tkatchev, L. G.; Todorov, T.; Toet, D. Z.; Tomaradze, A.; Tome, B.; Tonazzo, A.; Tortora, L.; Transtromer, G.; Treille, D.; Trischuk, W.; Tristram, G.; Trombini, A.; Troncon, C.; Tsirou, A.; Turluer, M. L.; Tyapkin, I. A.; Tyndel, M.; Tzamarias, S.; Ueberschaer, B.; Ullaland, O.; Uvarov, V.; Valenti, G.; Vallazza, E.; Vander Velde, C.; Van Apeldoorn, G. W.; Van Dam, P.; Van Doninck, W. K.; Van Eldik, J.; Vassilopoulos, N.; Vegni, G.; Ventura, L.; Venus, W.; Verbeure, F.; Verlato, M.; Vertogradov, L. S.; Vilanova, D.; Vincent, P.; Vitale, L.; Vlasov, E.; Vodopyanov, A. S.; Vrba, V.; Wahlen, H.; Walck, C.; Waldner, F.; Weierstall, M.; Weilhammer, P.; Weiser, C.; Wetherell, A. M.; Wicke, D.; Wickens, J. H.; Wielers, M.; Wilkinson, G. R.; Williams, W. S C; Winter, M.; Witek, M.; Woschnagg, K.; Yip, K.; Yushchenko, O.; Zach, F.; Zaitsev, A.; Zalewska, A.; Zalewski, P.; Zavrtanik, D.; Zevgolatakos, E.; Zimin, N. I.; Zito, M.; Zontar, D.; Zuberi, R.; Zucchelli, G. C.; Zumerle, G.

In: Zeitschrift für Physik C Particles and Fields, Vol. 70, No. 2, 04.1996, p. 179-195.

Research output: Contribution to journalArticle

Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, R, Alekseev, GD, Alemany, R, Allport, PP, Almehed, S, Alvsvaag, SJ, Amaldi, U, Amato, S, Andreazza, A, Andrieux, ML, Antilogus, P, Apel, WD, Arnoud, Y, Åsman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barate, R, Bardin, DY, Baroncelli, A, Barring, O, Barrio, JA, Bartl, W, Bates, MJ, Battaglia, M, Baubillier, M, Baudot, J, Becks, KH, Begalli, M, Beilliere, P, Belokopytov, Y, Belous, K, Benvenuti, AC, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, MS, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, PSL, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, TJV, Bozzo, M, Branchini, P, Brand, KD, Brenke, T, Brenner, RA, Bricman, C, Brillault, L, Brown, RCA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho Rozas, AJ, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, C, Castillo Gimenez, MV, Cattai, A, Cavallo, FR, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, GA, Chen, M, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, JL, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, HB, Crennell, D, Crosetti, G, Cuevas Maestro, J, Czellar, S, Dahl-Jensen, E, Dahm, J, Dalmagne, B, Dam, M, Damgaard, G, Dauncey, PD, Davenport, M, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Brabandere, S, De Clercq, C, De La Vaissiere, C, De Lotto, B, De Min, A, De Paula, L, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, L, Djama, F, Dolbeau, J, Donszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, KA, Dris, M, Dufour, Y, Dupont, F, Edsall, D, Ehret, R, Eigen, G, Ekelof, T, Ekspong, G, Elsing, M, Engel, JP, Ershaidat, N, Erzen, B, Espirito Santo, M, Falk, E, Fassouliotis, D, Feindt, M, Ferrer, A, Filippas, TA, Firestone, A, Fischer, PA, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B, Frenkiel, P, Fries, DC, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Gerber, JP, Gerdyukov, L, Gibbs, M, Gokieli, R, Golob, B, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S, Gunnarsson, P, Gunther, M, Guy, J, Hahn, F, Hahn, S, Hallgren, A, Hamacher, K, Hao, W, Harris, FJ, Hedberg, V, Henriques, R, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Higon, E, Hilke, HJ, Hill, TS, Holmgren, SO, Holt, PJ, Holthuizen, D, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, EK, Jonsson, L, Jonsson, P, Joram, C, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, EC, Keranen, R, Khomenko, BA, Khovanski, NN, King, B, Kjaer, NJ, Klapp, O, Klein, H, Klovning, A, Kluit, P, Koene, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Kramer, PH, Krammer, M, Kreuter, C, Kronkvist, I, Krumstein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, JW, Lanceri, L, Lane, DW, Langefeld, P, Lapin, V, Last, I, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Legan, CK, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lindner, R, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopez, JM, Lopez Aguera, MA, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Maehlum, G, Malychev, V, Mandl, F, Marco, J, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Maron, T, Martinez-Rivero, C, Martinez-Vidal, F, Marti I Garcia, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Medbo, J, Meroni, C, Meyer, S, Meyer, WT, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, MR, Morettini, P, Mueller, H, Mundim, LM, Murray, WJ, Muryn, B, Myatt, G, Naraghi, F, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, BS, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, A, Oberschulte-Beckmann, W, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pages, P, Palka, H, Papadopoulou, TD, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Petrovyck, M, Phillips, HT, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Reale, M, Rebecchi, P, Redaelli, NG, Regler, M, Reid, D, Renton, PB, Resvanis, LK, Richard, F, Richardson, J, Ridky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, EI, Rosso, E, Roudeau, P, Rovelli, T, Ruckstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, MAE, Sciolla, G, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seitz, A, Sekulin, R, Shellard, RC, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sisakian, AN, Sitar, B, Skaali, TB, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sosnowski, R, Souza-Santos, D, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, S, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tavernet, JP, Tchikilev, O, Tilquin, A, Timmermans, J, Tkatchev, LG, Todorov, T, Toet, DZ, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A, Turluer, ML, Tyapkin, IA, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Apeldoorn, GW, Van Dam, P, Van Doninck, WK, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, LS, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, AS, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, P, Weiser, C, Wetherell, AM, Wicke, D, Wickens, JH, Wielers, M, Wilkinson, GR, Williams, WSC, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O, Zach, F, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zito, M, Zontar, D, Zuberi, R, Zucchelli, GC & Zumerle, G 1996, 'Energy dependence of the differences between the quark and gluon jet fragmentation', Zeitschrift für Physik C Particles and Fields, vol. 70, no. 2, pp. 179-195.
Abreu P, Adam W, Adye T, Agasi E, Ajinenko I, Aleksan R et al. Energy dependence of the differences between the quark and gluon jet fragmentation. Zeitschrift für Physik C Particles and Fields. 1996 Apr;70(2):179-195.
Abreu, P. ; Adam, W. ; Adye, T. ; Agasi, E. ; Ajinenko, I. ; Aleksan, R. ; Alekseev, G. D. ; Alemany, R. ; Allport, P. P. ; Almehed, S. ; Alvsvaag, S. J. ; Amaldi, U. ; Amato, S. ; Andreazza, A. ; Andrieux, M. L. ; Antilogus, P. ; Apel, W. D. ; Arnoud, Y. ; Åsman, B. ; Augustin, J. E. ; Augustinus, A. ; Baillon, P. ; Bambade, P. ; Barao, F. ; Barate, R. ; Bardin, D. Y. ; Baroncelli, A. ; Barring, O. ; Barrio, J. A. ; Bartl, W. ; Bates, M. J. ; Battaglia, M. ; Baubillier, M. ; Baudot, J. ; Becks, K. H. ; Begalli, M. ; Beilliere, P. ; Belokopytov, Y. ; Belous, K. ; Benvenuti, A. C. ; Berggren, M. ; Bertrand, D. ; Bianchi, F. ; Bigi, M. ; Bilenky, M. S. ; Billoir, P. ; Bloch, D. ; Blume, M. ; Blyth, S. ; Bolognese, T. ; Bonesini, M. ; Bonivento, W. ; Booth, P. S L ; Borisov, G. ; Bosio, C. ; Bosworth, S. ; Botner, O. ; Bouquet, B. ; Bourdarios, C. ; Bowcock, T. J V ; Bozzo, M. ; Branchini, P. ; Brand, K. D. ; Brenke, T. ; Brenner, R. A. ; Bricman, C. ; Brillault, L. ; Brown, R. C A ; Bruckman, P. ; Brunet, J. M. ; Bugge, L. ; Buran, T. ; Burgsmueller, T. ; Buschmann, P. ; Buys, A. ; Cabrera, S. ; Caccia, M. ; Calvi, M. ; Camacho Rozas, A. J. ; Camporesi, T. ; Canale, V. ; Canepa, M. ; Cankocak, K. ; Cao, F. ; Carena, F. ; Carrilho, P. ; Carroll, L. ; Caso, C. ; Castillo Gimenez, M. V. ; Cattai, A. ; Cavallo, F. R. ; Cerrito, L. ; Chabaud, V. ; Charpentier, Ph ; Chaussard, L. ; Chauveau, J. ; Checchia, P. ; Chelkov, G. A. ; Chen, M. ; Chierici, R. ; Chliapnikov, P. ; Chochula, P. ; Chorowicz, V. ; Chudoba, J. ; Cindro, V. ; Collins, P. ; Contreras, J. L. ; Contri, R. ; Cortina, E. ; Cosme, G. ; Cossutti, F. ; Crawley, H. B. ; Crennell, D. ; Crosetti, G. ; Cuevas Maestro, J. ; Czellar, S. ; Dahl-Jensen, E. ; Dahm, J. ; Dalmagne, B. ; Dam, M. ; Damgaard, G. ; Dauncey, P. D. ; Davenport, M. ; Da Silva, W. ; Defoix, C. ; Deghorain, A. ; Della Ricca, G. ; Delpierre, P. ; Demaria, N. ; De Angelis, A. ; De Boer, W. ; De Brabandere, S. ; De Clercq, C. ; De La Vaissiere, C. ; De Lotto, B. ; De Min, A. ; De Paula, L. ; De Saint-Jean, C. ; Dijkstra, H. ; Di Ciaccio, L. ; Djama, F. ; Dolbeau, J. ; Donszelmann, M. ; Doroba, K. ; Dracos, M. ; Drees, J. ; Drees, K. A. ; Dris, M. ; Dufour, Y. ; Dupont, F. ; Edsall, D. ; Ehret, R. ; Eigen, G. ; Ekelof, T. ; Ekspong, G. ; Elsing, M. ; Engel, J. P. ; Ershaidat, N. ; Erzen, B. ; Espirito Santo, M. ; Falk, E. ; Fassouliotis, D. ; Feindt, M. ; Ferrer, A. ; Filippas, T. A. ; Firestone, A. ; Fischer, P. A. ; Foeth, H. ; Fokitis, E. ; Fontanelli, F. ; Formenti, F. ; Franek, B. ; Frenkiel, P. ; Fries, D. C. ; Frodesen, A. G. ; Fruhwirth, R. ; Fulda-Quenzer, F. ; Fuster, J. ; Galloni, A. ; Gamba, D. ; Gandelman, M. ; Garcia, C. ; Garcia, J. ; Gaspar, C. ; Gasparini, U. ; Gavillet, Ph ; Gazis, E. N. ; Gele, D. ; Gerber, J. P. ; Gerdyukov, L. ; Gibbs, M. ; Gokieli, R. ; Golob, B. ; Gopal, G. ; Gorn, L. ; Gorski, M. ; Gouz, Y. ; Gracco, V. ; Graziani, E. ; Grosdidier, G. ; Grzelak, K. ; Gumenyuk, S. ; Gunnarsson, P. ; Gunther, M. ; Guy, J. ; Hahn, F. ; Hahn, S. ; Hallgren, A. ; Hamacher, K. ; Hao, W. ; Harris, F. J. ; Hedberg, V. ; Henriques, R. ; Hernandez, J. J. ; Herquet, P. ; Herr, H. ; Hessing, T. L. ; Higon, E. ; Hilke, H. J. ; Hill, T. S. ; Holmgren, S. O. ; Holt, P. J. ; Holthuizen, D. ; Hoorelbeke, S. ; Houlden, M. ; Hrubec, J. ; Huet, K. ; Hultqvist, K. ; Jackson, J. N. ; Jacobsson, R. ; Jalocha, P. ; Janik, R. ; Jarlskog, Ch ; Jarlskog, G. ; Jarry, P. ; Jean-Marie, B. ; Johansson, E. K. ; Jonsson, L. ; Jonsson, P. ; Joram, C. ; Juillot, P. ; Kaiser, M. ; Kapusta, F. ; Karafasoulis, K. ; Karlsson, M. ; Karvelas, E. ; Katsanevas, S. ; Katsoufis, E. C. ; Keranen, R. ; Khomenko, B. A. ; Khovanski, N. N. ; King, B. ; Kjaer, N. J. ; Klapp, O. ; Klein, H. ; Klovning, A. ; Kluit, P. ; Koene, B. ; Kokkinias, P. ; Koratzinos, M. ; Korcyl, K. ; Kostioukhine, V. ; Kourkoumelis, C. ; Kouznetsov, O. ; Kramer, P. H. ; Krammer, M. ; Kreuter, C. ; Kronkvist, I. ; Krumstein, Z. ; Krupinski, W. ; Kubinec, P. ; Kucewicz, W. ; Kurvinen, K. ; Lacasta, C. ; Laktineh, I. ; Lamblot, S. ; Lamsa, J. W. ; Lanceri, L. ; Lane, D. W. ; Langefeld, P. ; Lapin, V. ; Last, I. ; Laugier, J. P. ; Lauhakangas, R. ; Leder, G. ; Ledroit, F. ; Lefebure, V. ; Legan, C. K. ; Leitner, R. ; Lemoigne, Y. ; Lemonne, J. ; Lenzen, G. ; Lepeltier, V. ; Lesiak, T. ; Lindner, R. ; Lipniacka, A. ; Lippi, I. ; Loerstad, B. ; Loken, J. G. ; Lopez, J. M. ; Lopez Aguera, M. A. ; Loukas, D. ; Lutz, P. ; Lyons, L. ; MacNaughton, J. ; Maehlum, G. ; Malychev, V. ; Mandl, F. ; Marco, J. ; Marechal, B. ; Margoni, M. ; Marin, J. C. ; Mariotti, C. ; Markou, A. ; Maron, T. ; Martinez-Rivero, C. ; Martinez-Vidal, F. ; Marti I Garcia, S. ; Masik, J. ; Matorras, F. ; Matteuzzi, C. ; Matthiae, G. ; Mazzucato, M. ; Mc Cubbin, M. ; Mc Kay, R. ; Mc Nulty, R. ; Medbo, J. ; Meroni, C. ; Meyer, S. ; Meyer, W. T. ; Michelotto, M. ; Migliore, E. ; Mirabito, L. ; Mitaroff, W. A. ; Mjoernmark, U. ; Moa, T. ; Moeller, R. ; Moenig, K. ; Monge, M. R. ; Morettini, P. ; Mueller, H. ; Mundim, L. M. ; Murray, W. J. ; Muryn, B. ; Myatt, G. ; Naraghi, F. ; Navarria, F. L. ; Navas, S. ; Nawrocki, K. ; Negri, P. ; Neumann, W. ; Neumeister, N. ; Nicolaidou, R. ; Nielsen, B. S. ; Nieuwenhuizen, M. ; Nikolaenko, V. ; Niss, P. ; Nomerotski, A. ; Normand, A. ; Oberschulte-Beckmann, W. ; Obraztsov, V. ; Olshevski, A. G. ; Onofre, A. ; Orava, R. ; Osterberg, K. ; Ouraou, A. ; Paganini, P. ; Paganoni, M. ; Pages, P. ; Palka, H. ; Papadopoulou, Th D. ; Papageorgiou, K. ; Pape, L. ; Parkes, C. ; Parodi, F. ; Passeri, A. ; Pegoraro, M. ; Peralta, L. ; Pernegger, H. ; Pernicka, M. ; Perrotta, A. ; Petridou, C. ; Petrolini, A. ; Petrovyck, M. ; Phillips, H. T. ; Piana, G. ; Pierre, F. ; Pimenta, M. ; Pindo, M. ; Plaszczynski, S. ; Podobrin, O. ; Pol, M. E. ; Polok, G. ; Poropat, P. ; Pozdniakov, V. ; Prest, M. ; Privitera, P. ; Pukhaeva, N. ; Pullia, A. ; Radojicic, D. ; Ragazzi, S. ; Rahmani, H. ; Rames, J. ; Ratoff, P. N. ; Read, A. L. ; Reale, M. ; Rebecchi, P. ; Redaelli, N. G. ; Regler, M. ; Reid, D. ; Renton, P. B. ; Resvanis, L. K. ; Richard, F. ; Richardson, J. ; Ridky, J. ; Rinaudo, G. ; Ripp, I. ; Romero, A. ; Roncagliolo, I. ; Ronchese, P. ; Roos, L. ; Rosenberg, E. I. ; Rosso, E. ; Roudeau, P. ; Rovelli, T. ; Ruckstuhl, W. ; Ruhlmann-Kleider, V. ; Ruiz, A. ; Saarikko, H. ; Sacquin, Y. ; Sadovsky, A. ; Sajot, G. ; Salt, J. ; Sanchez, J. ; Sannino, M. ; Schimmelpfennig, M. ; Schneider, H. ; Schwickerath, U. ; Schyns, M. A E ; Sciolla, G. ; Scuri, F. ; Seager, P. ; Sedykh, Y. ; Segar, A. M. ; Seitz, A. ; Sekulin, R. ; Shellard, R. C. ; Siccama, I. ; Siegrist, P. ; Simonetti, S. ; Simonetto, F. ; Sisakian, A. N. ; Sitar, B. ; Skaali, T. B. ; Smadja, G. ; Smirnov, N. ; Smirnova, O. ; Smith, G. R. ; Sosnowski, R. ; Souza-Santos, D. ; Spassov, T. ; Spiriti, E. ; Sponholz, P. ; Squarcia, S. ; Stanescu, C. ; Stapnes, S. ; Stavitski, I. ; Stichelbaut, F. ; Stocchi, A. ; Strauss, J. ; Strub, R. ; Stugu, B. ; Szczekowski, M. ; Szeptycka, M. ; Tabarelli, T. ; Tavernet, J. P. ; Tchikilev, O. ; Tilquin, A. ; Timmermans, J. ; Tkatchev, L. G. ; Todorov, T. ; Toet, D. Z. ; Tomaradze, A. ; Tome, B. ; Tonazzo, A. ; Tortora, L. ; Transtromer, G. ; Treille, D. ; Trischuk, W. ; Tristram, G. ; Trombini, A. ; Troncon, C. ; Tsirou, A. ; Turluer, M. L. ; Tyapkin, I. A. ; Tyndel, M. ; Tzamarias, S. ; Ueberschaer, B. ; Ullaland, O. ; Uvarov, V. ; Valenti, G. ; Vallazza, E. ; Vander Velde, C. ; Van Apeldoorn, G. W. ; Van Dam, P. ; Van Doninck, W. K. ; Van Eldik, J. ; Vassilopoulos, N. ; Vegni, G. ; Ventura, L. ; Venus, W. ; Verbeure, F. ; Verlato, M. ; Vertogradov, L. S. ; Vilanova, D. ; Vincent, P. ; Vitale, L. ; Vlasov, E. ; Vodopyanov, A. S. ; Vrba, V. ; Wahlen, H. ; Walck, C. ; Waldner, F. ; Weierstall, M. ; Weilhammer, P. ; Weiser, C. ; Wetherell, A. M. ; Wicke, D. ; Wickens, J. H. ; Wielers, M. ; Wilkinson, G. R. ; Williams, W. S C ; Winter, M. ; Witek, M. ; Woschnagg, K. ; Yip, K. ; Yushchenko, O. ; Zach, F. ; Zaitsev, A. ; Zalewska, A. ; Zalewski, P. ; Zavrtanik, D. ; Zevgolatakos, E. ; Zimin, N. I. ; Zito, M. ; Zontar, D. ; Zuberi, R. ; Zucchelli, G. C. ; Zumerle, G. / Energy dependence of the differences between the quark and gluon jet fragmentation. In: Zeitschrift für Physik C Particles and Fields. 1996 ; Vol. 70, No. 2. pp. 179-195.
@article{50cb701836994b92a78d8186033e848a,
title = "Energy dependence of the differences between the quark and gluon jet fragmentation",
abstract = "Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b quark jets. Unbiased quark jets came from events with two jets plus one photon. Quark and gluon jet properties in different energy ranges were compared for the first time within the same detector. Quark and gluon jets of nearly the same energy in symmetric three jet event topologies were also compared. Using three independent methods, the average value of the ratio of the mean charged multiplicities of gluon and quark jets is 〈 r 〉= 1.241 ± 0.015 (stat.) ± 0.025 (syst.). Gluon jets are broader and produce fragments with a softer energy spectrum than quark jets of equivalent energy. The string effect has been observed in fully symmetric three jet events. The measured ratio Rγ of the charged particle flow in the qq̄ inter-jet region of the qq̄g and qq̄γ samples agrees with the perturbative QCD expectation. The dependence of the mean charged multiplicity on the hadronic center-of-mass energy was analysed in photon plus n-jet events. The value for αs(MZ) determined from these data using a QCD prediction with corrections at leading and next-to-leading order is αs(MZ) = 0.116 ± 0.003 (stat.) ± 0.009 (syst.).",
author = "P. Abreu and W. Adam and T. Adye and E. Agasi and I. Ajinenko and R. Aleksan and Alekseev, {G. D.} and R. Alemany and Allport, {P. P.} and S. Almehed and Alvsvaag, {S. J.} and U. Amaldi and S. Amato and A. Andreazza and Andrieux, {M. L.} and P. Antilogus and Apel, {W. D.} and Y. Arnoud and B. {\AA}sman and Augustin, {J. E.} and A. Augustinus and P. Baillon and P. Bambade and F. Barao and R. Barate and Bardin, {D. Y.} and A. Baroncelli and O. Barring and Barrio, {J. A.} and W. Bartl and Bates, {M. J.} and M. Battaglia and M. Baubillier and J. Baudot and Becks, {K. H.} and M. Begalli and P. Beilliere and Y. Belokopytov and K. Belous and Benvenuti, {A. C.} and M. Berggren and D. Bertrand and F. Bianchi and M. Bigi and Bilenky, {M. S.} and P. Billoir and D. Bloch and M. Blume and S. Blyth and T. Bolognese and M. Bonesini and W. Bonivento and Booth, {P. S L} and G. Borisov and C. Bosio and S. Bosworth and O. Botner and B. Bouquet and C. Bourdarios and Bowcock, {T. J V} and M. Bozzo and P. Branchini and Brand, {K. D.} and T. Brenke and Brenner, {R. A.} and C. Bricman and L. Brillault and Brown, {R. C A} and P. Bruckman and Brunet, {J. M.} and L. Bugge and T. Buran and T. Burgsmueller and P. Buschmann and A. Buys and S. Cabrera and M. Caccia and M. Calvi and {Camacho Rozas}, {A. J.} and T. Camporesi and V. Canale and M. Canepa and K. Cankocak and F. Cao and F. Carena and P. Carrilho and L. Carroll and C. Caso and {Castillo Gimenez}, {M. V.} and A. Cattai and Cavallo, {F. R.} and L. Cerrito and V. Chabaud and Ph Charpentier and L. Chaussard and J. Chauveau and P. Checchia and Chelkov, {G. A.} and M. Chen and R. Chierici and P. Chliapnikov and P. Chochula and V. Chorowicz and J. Chudoba and V. Cindro and P. Collins and Contreras, {J. L.} and R. Contri and E. Cortina and G. Cosme and F. Cossutti and Crawley, {H. B.} and D. Crennell and G. Crosetti and {Cuevas Maestro}, J. and S. Czellar and E. Dahl-Jensen and J. Dahm and B. Dalmagne and M. Dam and G. Damgaard and Dauncey, {P. D.} and M. Davenport and {Da Silva}, W. and C. Defoix and A. Deghorain and {Della Ricca}, G. and P. Delpierre and N. Demaria and {De Angelis}, A. and {De Boer}, W. and {De Brabandere}, S. and {De Clercq}, C. and {De La Vaissiere}, C. and {De Lotto}, B. and {De Min}, A. and {De Paula}, L. and {De Saint-Jean}, C. and H. Dijkstra and {Di Ciaccio}, L. and F. Djama and J. Dolbeau and M. Donszelmann and K. Doroba and M. Dracos and J. Drees and Drees, {K. A.} and M. Dris and Y. Dufour and F. Dupont and D. Edsall and R. Ehret and G. Eigen and T. Ekelof and G. Ekspong and M. Elsing and Engel, {J. P.} and N. Ershaidat and B. Erzen and {Espirito Santo}, M. and E. Falk and D. Fassouliotis and M. Feindt and A. Ferrer and Filippas, {T. A.} and A. Firestone and Fischer, {P. A.} and H. Foeth and E. Fokitis and F. Fontanelli and F. Formenti and B. Franek and P. Frenkiel and Fries, {D. C.} and Frodesen, {A. G.} and R. Fruhwirth and F. Fulda-Quenzer and J. Fuster and A. Galloni and D. Gamba and M. Gandelman and C. Garcia and J. Garcia and C. Gaspar and U. Gasparini and Ph Gavillet and Gazis, {E. N.} and D. Gele and Gerber, {J. P.} and L. Gerdyukov and M. Gibbs and R. Gokieli and B. Golob and G. Gopal and L. Gorn and M. Gorski and Y. Gouz and V. Gracco and E. Graziani and G. Grosdidier and K. Grzelak and S. Gumenyuk and P. Gunnarsson and M. Gunther and J. Guy and F. Hahn and S. Hahn and A. Hallgren and K. Hamacher and W. Hao and Harris, {F. J.} and V. Hedberg and R. Henriques and Hernandez, {J. J.} and P. Herquet and H. Herr and Hessing, {T. L.} and E. Higon and Hilke, {H. J.} and Hill, {T. S.} and Holmgren, {S. O.} and Holt, {P. J.} and D. Holthuizen and S. Hoorelbeke and M. Houlden and J. Hrubec and K. Huet and K. Hultqvist and Jackson, {J. N.} and R. Jacobsson and P. Jalocha and R. Janik and Ch Jarlskog and G. Jarlskog and P. Jarry and B. Jean-Marie and Johansson, {E. K.} and L. Jonsson and P. Jonsson and C. Joram and P. Juillot and M. Kaiser and F. Kapusta and K. Karafasoulis and M. Karlsson and E. Karvelas and S. Katsanevas and Katsoufis, {E. C.} and R. Keranen and Khomenko, {B. A.} and Khovanski, {N. N.} and B. King and Kjaer, {N. J.} and O. Klapp and H. Klein and A. Klovning and P. Kluit and B. Koene and P. Kokkinias and M. Koratzinos and K. Korcyl and V. Kostioukhine and C. Kourkoumelis and O. Kouznetsov and Kramer, {P. H.} and M. Krammer and C. Kreuter and I. Kronkvist and Z. Krumstein and W. Krupinski and P. Kubinec and W. Kucewicz and K. Kurvinen and C. Lacasta and I. Laktineh and S. Lamblot and Lamsa, {J. W.} and L. Lanceri and Lane, {D. W.} and P. Langefeld and V. Lapin and I. Last and Laugier, {J. P.} and R. Lauhakangas and G. Leder and F. Ledroit and V. Lefebure and Legan, {C. K.} and R. Leitner and Y. Lemoigne and J. Lemonne and G. Lenzen and V. Lepeltier and T. Lesiak and R. Lindner and A. Lipniacka and I. Lippi and B. Loerstad and Loken, {J. G.} and Lopez, {J. M.} and {Lopez Aguera}, {M. A.} and D. Loukas and P. Lutz and L. Lyons and J. MacNaughton and G. Maehlum and V. Malychev and F. Mandl and J. Marco and B. Marechal and M. Margoni and Marin, {J. C.} and C. Mariotti and A. Markou and T. Maron and C. Martinez-Rivero and F. Martinez-Vidal and {Marti I Garcia}, S. and J. Masik and F. Matorras and C. Matteuzzi and G. Matthiae and M. Mazzucato and {Mc Cubbin}, M. and {Mc Kay}, R. and {Mc Nulty}, R. and J. Medbo and C. Meroni and S. Meyer and Meyer, {W. T.} and M. Michelotto and E. Migliore and L. Mirabito and Mitaroff, {W. A.} and U. Mjoernmark and T. Moa and R. Moeller and K. Moenig and Monge, {M. R.} and P. Morettini and H. Mueller and Mundim, {L. M.} and Murray, {W. J.} and B. Muryn and G. Myatt and F. Naraghi and Navarria, {F. L.} and S. Navas and K. Nawrocki and P. Negri and W. Neumann and N. Neumeister and R. Nicolaidou and Nielsen, {B. S.} and M. Nieuwenhuizen and V. Nikolaenko and P. Niss and A. Nomerotski and A. Normand and W. Oberschulte-Beckmann and V. Obraztsov and Olshevski, {A. G.} and A. Onofre and R. Orava and K. Osterberg and A. Ouraou and P. Paganini and M. Paganoni and P. Pages and H. Palka and Papadopoulou, {Th D.} and K. Papageorgiou and L. Pape and C. Parkes and F. Parodi and A. Passeri and M. Pegoraro and L. Peralta and H. Pernegger and M. Pernicka and A. Perrotta and C. Petridou and A. Petrolini and M. Petrovyck and Phillips, {H. T.} and G. Piana and F. Pierre and M. Pimenta and M. Pindo and S. Plaszczynski and O. Podobrin and Pol, {M. E.} and G. Polok and P. Poropat and V. Pozdniakov and M. Prest and P. Privitera and N. Pukhaeva and A. Pullia and D. Radojicic and S. Ragazzi and H. Rahmani and J. Rames and Ratoff, {P. N.} and Read, {A. L.} and M. Reale and P. Rebecchi and Redaelli, {N. G.} and M. Regler and D. Reid and Renton, {P. B.} and Resvanis, {L. K.} and F. Richard and J. Richardson and J. Ridky and G. Rinaudo and I. Ripp and A. Romero and I. Roncagliolo and P. Ronchese and L. Roos and Rosenberg, {E. I.} and E. Rosso and P. Roudeau and T. Rovelli and W. Ruckstuhl and V. Ruhlmann-Kleider and A. Ruiz and H. Saarikko and Y. Sacquin and A. Sadovsky and G. Sajot and J. Salt and J. Sanchez and M. Sannino and M. Schimmelpfennig and H. Schneider and U. Schwickerath and Schyns, {M. A E} and G. Sciolla and F. Scuri and P. Seager and Y. Sedykh and Segar, {A. M.} and A. Seitz and R. Sekulin and Shellard, {R. C.} and I. Siccama and P. Siegrist and S. Simonetti and F. Simonetto and Sisakian, {A. N.} and B. Sitar and Skaali, {T. B.} and G. Smadja and N. Smirnov and O. Smirnova and Smith, {G. R.} and R. Sosnowski and D. Souza-Santos and T. Spassov and E. Spiriti and P. Sponholz and S. Squarcia and C. Stanescu and S. Stapnes and I. Stavitski and F. Stichelbaut and A. Stocchi and J. Strauss and R. Strub and B. Stugu and M. Szczekowski and M. Szeptycka and T. Tabarelli and Tavernet, {J. P.} and O. Tchikilev and A. Tilquin and J. Timmermans and Tkatchev, {L. G.} and T. Todorov and Toet, {D. Z.} and A. Tomaradze and B. Tome and A. Tonazzo and L. Tortora and G. Transtromer and D. Treille and W. Trischuk and G. Tristram and A. Trombini and C. Troncon and A. Tsirou and Turluer, {M. L.} and Tyapkin, {I. A.} and M. Tyndel and S. Tzamarias and B. Ueberschaer and O. Ullaland and V. Uvarov and G. Valenti and E. Vallazza and {Vander Velde}, C. and {Van Apeldoorn}, {G. W.} and {Van Dam}, P. and {Van Doninck}, {W. K.} and {Van Eldik}, J. and N. Vassilopoulos and G. Vegni and L. Ventura and W. Venus and F. Verbeure and M. Verlato and Vertogradov, {L. S.} and D. Vilanova and P. Vincent and L. Vitale and E. Vlasov and Vodopyanov, {A. S.} and V. Vrba and H. Wahlen and C. Walck and F. Waldner and M. Weierstall and P. Weilhammer and C. Weiser and Wetherell, {A. M.} and D. Wicke and Wickens, {J. H.} and M. Wielers and Wilkinson, {G. R.} and Williams, {W. S C} and M. Winter and M. Witek and K. Woschnagg and K. Yip and O. Yushchenko and F. Zach and A. Zaitsev and A. Zalewska and P. Zalewski and D. Zavrtanik and E. Zevgolatakos and Zimin, {N. I.} and M. Zito and D. Zontar and R. Zuberi and Zucchelli, {G. C.} and G. Zumerle",
year = "1996",
month = "4",
language = "English",
volume = "70",
pages = "179--195",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "2",

}

TY - JOUR

T1 - Energy dependence of the differences between the quark and gluon jet fragmentation

AU - Abreu, P.

AU - Adam, W.

AU - Adye, T.

AU - Agasi, E.

AU - Ajinenko, I.

AU - Aleksan, R.

AU - Alekseev, G. D.

AU - Alemany, R.

AU - Allport, P. P.

AU - Almehed, S.

AU - Alvsvaag, S. J.

AU - Amaldi, U.

AU - Amato, S.

AU - Andreazza, A.

AU - Andrieux, M. L.

AU - Antilogus, P.

AU - Apel, W. D.

AU - Arnoud, Y.

AU - Åsman, B.

AU - Augustin, J. E.

AU - Augustinus, A.

AU - Baillon, P.

AU - Bambade, P.

AU - Barao, F.

AU - Barate, R.

AU - Bardin, D. Y.

AU - Baroncelli, A.

AU - Barring, O.

AU - Barrio, J. A.

AU - Bartl, W.

AU - Bates, M. J.

AU - Battaglia, M.

AU - Baubillier, M.

AU - Baudot, J.

AU - Becks, K. H.

AU - Begalli, M.

AU - Beilliere, P.

AU - Belokopytov, Y.

AU - Belous, K.

AU - Benvenuti, A. C.

AU - Berggren, M.

AU - Bertrand, D.

AU - Bianchi, F.

AU - Bigi, M.

AU - Bilenky, M. S.

AU - Billoir, P.

AU - Bloch, D.

AU - Blume, M.

AU - Blyth, S.

AU - Bolognese, T.

AU - Bonesini, M.

AU - Bonivento, W.

AU - Booth, P. S L

AU - Borisov, G.

AU - Bosio, C.

AU - Bosworth, S.

AU - Botner, O.

AU - Bouquet, B.

AU - Bourdarios, C.

AU - Bowcock, T. J V

AU - Bozzo, M.

AU - Branchini, P.

AU - Brand, K. D.

AU - Brenke, T.

AU - Brenner, R. A.

AU - Bricman, C.

AU - Brillault, L.

AU - Brown, R. C A

AU - Bruckman, P.

AU - Brunet, J. M.

AU - Bugge, L.

AU - Buran, T.

AU - Burgsmueller, T.

AU - Buschmann, P.

AU - Buys, A.

AU - Cabrera, S.

AU - Caccia, M.

AU - Calvi, M.

AU - Camacho Rozas, A. J.

AU - Camporesi, T.

AU - Canale, V.

AU - Canepa, M.

AU - Cankocak, K.

AU - Cao, F.

AU - Carena, F.

AU - Carrilho, P.

AU - Carroll, L.

AU - Caso, C.

AU - Castillo Gimenez, M. V.

AU - Cattai, A.

AU - Cavallo, F. R.

AU - Cerrito, L.

AU - Chabaud, V.

AU - Charpentier, Ph

AU - Chaussard, L.

AU - Chauveau, J.

AU - Checchia, P.

AU - Chelkov, G. A.

AU - Chen, M.

AU - Chierici, R.

AU - Chliapnikov, P.

AU - Chochula, P.

AU - Chorowicz, V.

AU - Chudoba, J.

AU - Cindro, V.

AU - Collins, P.

AU - Contreras, J. L.

AU - Contri, R.

AU - Cortina, E.

AU - Cosme, G.

AU - Cossutti, F.

AU - Crawley, H. B.

AU - Crennell, D.

AU - Crosetti, G.

AU - Cuevas Maestro, J.

AU - Czellar, S.

AU - Dahl-Jensen, E.

AU - Dahm, J.

AU - Dalmagne, B.

AU - Dam, M.

AU - Damgaard, G.

AU - Dauncey, P. D.

AU - Davenport, M.

AU - Da Silva, W.

AU - Defoix, C.

AU - Deghorain, A.

AU - Della Ricca, G.

AU - Delpierre, P.

AU - Demaria, N.

AU - De Angelis, A.

AU - De Boer, W.

AU - De Brabandere, S.

AU - De Clercq, C.

AU - De La Vaissiere, C.

AU - De Lotto, B.

AU - De Min, A.

AU - De Paula, L.

AU - De Saint-Jean, C.

AU - Dijkstra, H.

AU - Di Ciaccio, L.

AU - Djama, F.

AU - Dolbeau, J.

AU - Donszelmann, M.

AU - Doroba, K.

AU - Dracos, M.

AU - Drees, J.

AU - Drees, K. A.

AU - Dris, M.

AU - Dufour, Y.

AU - Dupont, F.

AU - Edsall, D.

AU - Ehret, R.

AU - Eigen, G.

AU - Ekelof, T.

AU - Ekspong, G.

AU - Elsing, M.

AU - Engel, J. P.

AU - Ershaidat, N.

AU - Erzen, B.

AU - Espirito Santo, M.

AU - Falk, E.

AU - Fassouliotis, D.

AU - Feindt, M.

AU - Ferrer, A.

AU - Filippas, T. A.

AU - Firestone, A.

AU - Fischer, P. A.

AU - Foeth, H.

AU - Fokitis, E.

AU - Fontanelli, F.

AU - Formenti, F.

AU - Franek, B.

AU - Frenkiel, P.

AU - Fries, D. C.

AU - Frodesen, A. G.

AU - Fruhwirth, R.

AU - Fulda-Quenzer, F.

AU - Fuster, J.

AU - Galloni, A.

AU - Gamba, D.

AU - Gandelman, M.

AU - Garcia, C.

AU - Garcia, J.

AU - Gaspar, C.

AU - Gasparini, U.

AU - Gavillet, Ph

AU - Gazis, E. N.

AU - Gele, D.

AU - Gerber, J. P.

AU - Gerdyukov, L.

AU - Gibbs, M.

AU - Gokieli, R.

AU - Golob, B.

AU - Gopal, G.

AU - Gorn, L.

AU - Gorski, M.

AU - Gouz, Y.

AU - Gracco, V.

AU - Graziani, E.

AU - Grosdidier, G.

AU - Grzelak, K.

AU - Gumenyuk, S.

AU - Gunnarsson, P.

AU - Gunther, M.

AU - Guy, J.

AU - Hahn, F.

AU - Hahn, S.

AU - Hallgren, A.

AU - Hamacher, K.

AU - Hao, W.

AU - Harris, F. J.

AU - Hedberg, V.

AU - Henriques, R.

AU - Hernandez, J. J.

AU - Herquet, P.

AU - Herr, H.

AU - Hessing, T. L.

AU - Higon, E.

AU - Hilke, H. J.

AU - Hill, T. S.

AU - Holmgren, S. O.

AU - Holt, P. J.

AU - Holthuizen, D.

AU - Hoorelbeke, S.

AU - Houlden, M.

AU - Hrubec, J.

AU - Huet, K.

AU - Hultqvist, K.

AU - Jackson, J. N.

AU - Jacobsson, R.

AU - Jalocha, P.

AU - Janik, R.

AU - Jarlskog, Ch

AU - Jarlskog, G.

AU - Jarry, P.

AU - Jean-Marie, B.

AU - Johansson, E. K.

AU - Jonsson, L.

AU - Jonsson, P.

AU - Joram, C.

AU - Juillot, P.

AU - Kaiser, M.

AU - Kapusta, F.

AU - Karafasoulis, K.

AU - Karlsson, M.

AU - Karvelas, E.

AU - Katsanevas, S.

AU - Katsoufis, E. C.

AU - Keranen, R.

AU - Khomenko, B. A.

AU - Khovanski, N. N.

AU - King, B.

AU - Kjaer, N. J.

AU - Klapp, O.

AU - Klein, H.

AU - Klovning, A.

AU - Kluit, P.

AU - Koene, B.

AU - Kokkinias, P.

AU - Koratzinos, M.

AU - Korcyl, K.

AU - Kostioukhine, V.

AU - Kourkoumelis, C.

AU - Kouznetsov, O.

AU - Kramer, P. H.

AU - Krammer, M.

AU - Kreuter, C.

AU - Kronkvist, I.

AU - Krumstein, Z.

AU - Krupinski, W.

AU - Kubinec, P.

AU - Kucewicz, W.

AU - Kurvinen, K.

AU - Lacasta, C.

AU - Laktineh, I.

AU - Lamblot, S.

AU - Lamsa, J. W.

AU - Lanceri, L.

AU - Lane, D. W.

AU - Langefeld, P.

AU - Lapin, V.

AU - Last, I.

AU - Laugier, J. P.

AU - Lauhakangas, R.

AU - Leder, G.

AU - Ledroit, F.

AU - Lefebure, V.

AU - Legan, C. K.

AU - Leitner, R.

AU - Lemoigne, Y.

AU - Lemonne, J.

AU - Lenzen, G.

AU - Lepeltier, V.

AU - Lesiak, T.

AU - Lindner, R.

AU - Lipniacka, A.

AU - Lippi, I.

AU - Loerstad, B.

AU - Loken, J. G.

AU - Lopez, J. M.

AU - Lopez Aguera, M. A.

AU - Loukas, D.

AU - Lutz, P.

AU - Lyons, L.

AU - MacNaughton, J.

AU - Maehlum, G.

AU - Malychev, V.

AU - Mandl, F.

AU - Marco, J.

AU - Marechal, B.

AU - Margoni, M.

AU - Marin, J. C.

AU - Mariotti, C.

AU - Markou, A.

AU - Maron, T.

AU - Martinez-Rivero, C.

AU - Martinez-Vidal, F.

AU - Marti I Garcia, S.

AU - Masik, J.

AU - Matorras, F.

AU - Matteuzzi, C.

AU - Matthiae, G.

AU - Mazzucato, M.

AU - Mc Cubbin, M.

AU - Mc Kay, R.

AU - Mc Nulty, R.

AU - Medbo, J.

AU - Meroni, C.

AU - Meyer, S.

AU - Meyer, W. T.

AU - Michelotto, M.

AU - Migliore, E.

AU - Mirabito, L.

AU - Mitaroff, W. A.

AU - Mjoernmark, U.

AU - Moa, T.

AU - Moeller, R.

AU - Moenig, K.

AU - Monge, M. R.

AU - Morettini, P.

AU - Mueller, H.

AU - Mundim, L. M.

AU - Murray, W. J.

AU - Muryn, B.

AU - Myatt, G.

AU - Naraghi, F.

AU - Navarria, F. L.

AU - Navas, S.

AU - Nawrocki, K.

AU - Negri, P.

AU - Neumann, W.

AU - Neumeister, N.

AU - Nicolaidou, R.

AU - Nielsen, B. S.

AU - Nieuwenhuizen, M.

AU - Nikolaenko, V.

AU - Niss, P.

AU - Nomerotski, A.

AU - Normand, A.

AU - Oberschulte-Beckmann, W.

AU - Obraztsov, V.

AU - Olshevski, A. G.

AU - Onofre, A.

AU - Orava, R.

AU - Osterberg, K.

AU - Ouraou, A.

AU - Paganini, P.

AU - Paganoni, M.

AU - Pages, P.

AU - Palka, H.

AU - Papadopoulou, Th D.

AU - Papageorgiou, K.

AU - Pape, L.

AU - Parkes, C.

AU - Parodi, F.

AU - Passeri, A.

AU - Pegoraro, M.

AU - Peralta, L.

AU - Pernegger, H.

AU - Pernicka, M.

AU - Perrotta, A.

AU - Petridou, C.

AU - Petrolini, A.

AU - Petrovyck, M.

AU - Phillips, H. T.

AU - Piana, G.

AU - Pierre, F.

AU - Pimenta, M.

AU - Pindo, M.

AU - Plaszczynski, S.

AU - Podobrin, O.

AU - Pol, M. E.

AU - Polok, G.

AU - Poropat, P.

AU - Pozdniakov, V.

AU - Prest, M.

AU - Privitera, P.

AU - Pukhaeva, N.

AU - Pullia, A.

AU - Radojicic, D.

AU - Ragazzi, S.

AU - Rahmani, H.

AU - Rames, J.

AU - Ratoff, P. N.

AU - Read, A. L.

AU - Reale, M.

AU - Rebecchi, P.

AU - Redaelli, N. G.

AU - Regler, M.

AU - Reid, D.

AU - Renton, P. B.

AU - Resvanis, L. K.

AU - Richard, F.

AU - Richardson, J.

AU - Ridky, J.

AU - Rinaudo, G.

AU - Ripp, I.

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PY - 1996/4

Y1 - 1996/4

N2 - Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b quark jets. Unbiased quark jets came from events with two jets plus one photon. Quark and gluon jet properties in different energy ranges were compared for the first time within the same detector. Quark and gluon jets of nearly the same energy in symmetric three jet event topologies were also compared. Using three independent methods, the average value of the ratio of the mean charged multiplicities of gluon and quark jets is 〈 r 〉= 1.241 ± 0.015 (stat.) ± 0.025 (syst.). Gluon jets are broader and produce fragments with a softer energy spectrum than quark jets of equivalent energy. The string effect has been observed in fully symmetric three jet events. The measured ratio Rγ of the charged particle flow in the qq̄ inter-jet region of the qq̄g and qq̄γ samples agrees with the perturbative QCD expectation. The dependence of the mean charged multiplicity on the hadronic center-of-mass energy was analysed in photon plus n-jet events. The value for αs(MZ) determined from these data using a QCD prediction with corrections at leading and next-to-leading order is αs(MZ) = 0.116 ± 0.003 (stat.) ± 0.009 (syst.).

AB - Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b quark jets. Unbiased quark jets came from events with two jets plus one photon. Quark and gluon jet properties in different energy ranges were compared for the first time within the same detector. Quark and gluon jets of nearly the same energy in symmetric three jet event topologies were also compared. Using three independent methods, the average value of the ratio of the mean charged multiplicities of gluon and quark jets is 〈 r 〉= 1.241 ± 0.015 (stat.) ± 0.025 (syst.). Gluon jets are broader and produce fragments with a softer energy spectrum than quark jets of equivalent energy. The string effect has been observed in fully symmetric three jet events. The measured ratio Rγ of the charged particle flow in the qq̄ inter-jet region of the qq̄g and qq̄γ samples agrees with the perturbative QCD expectation. The dependence of the mean charged multiplicity on the hadronic center-of-mass energy was analysed in photon plus n-jet events. The value for αs(MZ) determined from these data using a QCD prediction with corrections at leading and next-to-leading order is αs(MZ) = 0.116 ± 0.003 (stat.) ± 0.009 (syst.).

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M3 - Article

AN - SCOPUS:0040743102

VL - 70

SP - 179

EP - 195

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 2

ER -