Detailed study of high-pT neutral pion suppression and azimuthal anisotropy in Au+Au collisions at sNN=200 GeV

S. S. Adler, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas, L. Aphecetche, S. H. Aronson, R. Averbeck, T. C. Awes, R. Azmoun, V. Babinstev, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, S. Bathe, S. Batsouli, V. BaublisA. Bazilevsky, S. Belikov, Y. Berndnikov, S. Bhagavatula, J. G. Boissevain, H. Borel, S. Borenstein, M. L. Brooks, D. S. Brown, N. Bruner, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, X. Camard, J. S. Chai, P. Chand, W. C. Chang, S. Chernichenko, C. Y. Chi, J. Chiba, M. Chiu, I. J. Choi, J. Choi, R. K. Choudhury, T. Chujo, V. Cianciolo, Y. Cobigo, B. A. Cole, P. Constantin, D. D'Enterria, G. David, H. Delagrange, A. Denisov, A. Deshpande, E. J. Desmond, A. Devismes, O. Dietzsch, O. Drapier, A. Drees, K. A. Drees, R. Du Rietz, A. Durum, D. Dutta, Y. V. Efremenko, K. El Chenawi, A. Enokizono, H. En'Yo, S. Esumi, L. Ewell, D. E. Fields, F. Fleuret, S. L. Fokin, B. D. Fox, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, S. Y. Fung, S. Garpman, T. K. Ghosh, A. Glenn, G. Gogiberidze, M. Gonin, J. Gosset, Y. Goto, R. Granier De Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, W. Guryn, H. Å Gustafsson, T. Hachiya, J. S. Haggerty, H. Hamagaki, A. G. Hansen, E. P. Hartouni, M. Harvey, R. Hayano, N. Hayashi, X. He, M. Heffner, T. K. Hemmick, J. M. Heuser, M. Hibino, J. C. Hill, W. Holzmann, K. Homma, B. Hong, A. Hoover, T. Ichihara, V. V. Ikonnikov, K. Imai, D. Isenhower, M. Ishihara, M. Issah, A. Isupov, B. V. Jacak, W. Y. Jang, Y. Jeong, J. Jia, O. Jinnouchi, B. M. Johnson, S. C. Johnson, K. S. Joo, D. Jouan, S. Kametani, N. Kamihara, J. H. Kang, S. S. Kapoor, K. Katou, S. Kelly, B. Khachaturov, A. Khanzadeev, J. Kikuchi, D. H. Kim, D. J. Kim, D. W. Kim, E. Kim, G. B. Kim, H. J. Kim, E. Kistenev, A. Kiyomichi, K. Kiyoyama, C. Klein-Boesing, H. Kobayashi, L. Kochenda, V. Kochetkov, D. Koehler, T. Kohama, M. Kopytine, D. Kotchetkov, A. Kozlov, P. J. Kroon, C. H. Kuberg, K. Kurita, Y. Kuroki, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, V. Ladygin, J. G. Lajoie, A. Lebedev, S. Leckey, D. M. Lee, S. Lee, M. J. Leitch, X. H. Li, H. Lim, A. Litvinenko, M. X. Liu, Y. Liu, C. F. Maguire, Y. I. Makdisi, A. Malakhov, V. I. Manko, Y. Mao, G. Martinez, M. D. Marx, H. Masui, F. Matathias, T. Matsumoto, P. L. McGaughey, E. Melnikov, F. Messer, Y. Miake, J. Milan, T. E. Miller, A. Milov, S. Mioduszewski, R. E. Mischke, G. C. Mishra, J. T. Mitchell, A. K. Mohanty, D. P. Morrison, J. M. Moss, F. Mühlbacher, D. Mukhopadhyay, M. Muniruzzaman, J. Murata, S. Nagamiya, J. L. Nagle, T. Nakamura, B. K. Nandi, M. Nara, J. Newby, P. Nilsson, A. S. Nyanin, J. Nystrand, E. O'Brien, C. A. Ogilvie, H. Ohnishi, I. D. Ojha, K. Okada, M. Ono, V. Onuchin, A. Oskarsson, I. Otterlund, K. Oyama, K. Ozawa, D. Pal, A. P T Palounek, V. Pantuev, V. Papavassiliou, J. Park, A. Parmar, S. F. Pate, T. Peitzmann, J. C. Peng, V. Peresedov, C. Pinkenburg, R. P. Pisani, F. Plasil, M. L. Purschke, A. K. Purwar, J. Rak, I. Ravinovich, K. F. Read, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, G. Roche, A. Romana, M. Rosati, P. Rosnet, S. S. Ryu, M. E. Sadler, N. Saito, T. Sakaguchi, M. Sakai, S. Sakai, V. Samsonov, L. Sanfratello, R. Santo, H. D. Sato, S. Sato, S. Sawada, Y. Schutz, V. Semenov, R. Seto, M. R. Shaw, T. K. Shea, T. A. Shibata, K. Shigaki, T. Shiina, C. L. Silva, D. Silvermyr, K. S. Sim, C. P. Singh, V. Singh, M. Sivertz, A. Soldatov, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, F. Staley, P. W. Stankus, E. Stenlund, M. Stepanov, A. Ster, S. P. Stoll, T. Sugitate, J. P. Sullivan, E. M. Takagui, A. Taketani, M. Tamai, K. H. Tanaka, Y. Tanaka, K. Tanida, M. J. Tannenbaum, P. Tarján, J. D. Tepe, T. L. Thomas, J. Tojo, H. Torii, R. S. Towell, I. Tserruya, H. Tsuruoka, S. K. Tuli, H. Tydesjö, N. Tyurin, H. W. Van Hecke, J. Velkovska, M. Velkovsky, V. Veszprémi, L. Villatte, A. A. Vinogradov, M. A. Volkov, E. Vznuzdaev, X. R. Wang, Y. Watanabe, S. N. White, F. K. Wohn, C. L. Woody, W. Xie, Y. Yang, A. Yanovich, S. Yokkaichi, G. R. Young, I. E. Yushmanov, W. A. Zajc, C. Zhang, S. Zhou, S. J. Zhou, L. Zolin

Research output: Contribution to journalArticle

93 Citations (Scopus)

Abstract

Measurements of neutral pion (π0) production at midrapidity in sNN=200 GeV Au+Au collisions as a function of transverse momentum, pT, collision centrality, and angle with respect to reaction plane are presented. The data represent the final π0 results from the PHENIX experiment for the first RHIC Au+Au run at design center-of-mass energy. They include additional data obtained using the PHENIX Level-2 trigger with more than a factor of 3 increase in statistics over previously published results for pT>6 GeV/c. We evaluate the suppression in the yield of high-pT π0's relative to pointlike scaling expectations using the nuclear modification factor RAA. We present the pT dependence of RAA for nine bins in collision centrality. We separately integrate RAA over larger pT bins to show more precisely the centrality dependence of the high-pT suppression. We then evaluate the dependence of the high-pT suppression on the emission angle Δ of the pions with respect to event reaction plane for seven bins in collision centrality. We show that the yields of high-pT π0's vary strongly with Δ, consistent with prior measurements. We show that this variation persists in the most peripheral bin accessible in this analysis. For the peripheral bins we observe no suppression for neutral pions produced aligned with the reaction plane, whereas the yield of π0's produced perpendicular to the reaction plane is suppressed by a factor of ~2. We analyze the combined centrality and Δ dependence of the π0 suppression in different pT bins using different possible descriptions of parton energy loss dependence on jet path-length averages to determine whether a single geometric picture can explain the observed suppression pattern.

Original languageEnglish
Article number034904
JournalPhysical Review C - Nuclear Physics
Volume76
Issue number3
DOIs
Publication statusPublished - Sep 25 2007

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pions
retarding
anisotropy
collisions
transverse momentum
partons
center of mass
energy dissipation
actuators
statistics
scaling
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Adler, S. S., Afanasiev, S., Aidala, C., Ajitanand, N. N., Akiba, Y., Alexander, J., ... Zolin, L. (2007). Detailed study of high-pT neutral pion suppression and azimuthal anisotropy in Au+Au collisions at sNN=200 GeV. Physical Review C - Nuclear Physics, 76(3), [034904]. https://doi.org/10.1103/PhysRevC.76.034904

Detailed study of high-pT neutral pion suppression and azimuthal anisotropy in Au+Au collisions at sNN=200 GeV. / Adler, S. S.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Alexander, J.; Amirikas, R.; Aphecetche, L.; Aronson, S. H.; Averbeck, R.; Awes, T. C.; Azmoun, R.; Babinstev, V.; Baldisseri, A.; Barish, K. N.; Barnes, P. D.; Bassalleck, B.; Bathe, S.; Batsouli, S.; Baublis, V.; Bazilevsky, A.; Belikov, S.; Berndnikov, Y.; Bhagavatula, S.; Boissevain, J. G.; Borel, H.; Borenstein, S.; Brooks, M. L.; Brown, D. S.; Bruner, N.; Bucher, D.; Buesching, H.; Bumazhnov, V.; Bunce, G.; Burward-Hoy, J. M.; Butsyk, S.; Camard, X.; Chai, J. S.; Chand, P.; Chang, W. C.; Chernichenko, S.; Chi, C. Y.; Chiba, J.; Chiu, M.; Choi, I. J.; Choi, J.; Choudhury, R. K.; Chujo, T.; Cianciolo, V.; Cobigo, Y.; Cole, B. A.; Constantin, P.; D'Enterria, D.; David, G.; Delagrange, H.; Denisov, A.; Deshpande, A.; Desmond, E. J.; Devismes, A.; Dietzsch, O.; Drapier, O.; Drees, A.; Drees, K. A.; Du Rietz, R.; Durum, A.; Dutta, D.; Efremenko, Y. V.; Chenawi, K. El; Enokizono, A.; En'Yo, H.; Esumi, S.; Ewell, L.; Fields, D. E.; Fleuret, F.; Fokin, S. L.; Fox, B. D.; Fraenkel, Z.; Frantz, J. E.; Franz, A.; Frawley, A. D.; Fung, S. Y.; Garpman, S.; Ghosh, T. K.; Glenn, A.; Gogiberidze, G.; Gonin, M.; Gosset, J.; Goto, Y.; Cassagnac, R. Granier De; Grau, N.; Greene, S. V.; Perdekamp, M. Grosse; Guryn, W.; Gustafsson, H. Å; Hachiya, T.; Haggerty, J. S.; Hamagaki, H.; Hansen, A. G.; Hartouni, E. P.; Harvey, M.; Hayano, R.; Hayashi, N.; He, X.; Heffner, M.; Hemmick, T. K.; Heuser, J. M.; Hibino, M.; Hill, J. C.; Holzmann, W.; Homma, K.; Hong, B.; Hoover, A.; Ichihara, T.; Ikonnikov, V. V.; Imai, K.; Isenhower, D.; Ishihara, M.; Issah, M.; Isupov, A.; Jacak, B. V.; Jang, W. Y.; Jeong, Y.; Jia, J.; Jinnouchi, O.; Johnson, B. M.; Johnson, S. C.; Joo, K. S.; Jouan, D.; Kametani, S.; Kamihara, N.; Kang, J. H.; Kapoor, S. S.; Katou, K.; Kelly, S.; Khachaturov, B.; Khanzadeev, A.; Kikuchi, J.; Kim, D. H.; Kim, D. J.; Kim, D. W.; Kim, E.; Kim, G. B.; Kim, H. J.; Kistenev, E.; Kiyomichi, A.; Kiyoyama, K.; Klein-Boesing, C.; Kobayashi, H.; Kochenda, L.; Kochetkov, V.; Koehler, D.; Kohama, T.; Kopytine, M.; Kotchetkov, D.; Kozlov, A.; Kroon, P. J.; Kuberg, C. H.; Kurita, K.; Kuroki, Y.; Kweon, M. J.; Kwon, Y.; Kyle, G. S.; Lacey, R.; Ladygin, V.; Lajoie, J. G.; Lebedev, A.; Leckey, S.; Lee, D. M.; Lee, S.; Leitch, M. J.; Li, X. H.; Lim, H.; Litvinenko, A.; Liu, M. X.; Liu, Y.; Maguire, C. F.; Makdisi, Y. I.; Malakhov, A.; Manko, V. I.; Mao, Y.; Martinez, G.; Marx, M. D.; Masui, H.; Matathias, F.; Matsumoto, T.; McGaughey, P. L.; Melnikov, E.; Messer, F.; Miake, Y.; Milan, J.; Miller, T. E.; Milov, A.; Mioduszewski, S.; Mischke, R. E.; Mishra, G. C.; Mitchell, J. T.; Mohanty, A. K.; Morrison, D. P.; Moss, J. M.; Mühlbacher, F.; Mukhopadhyay, D.; Muniruzzaman, M.; Murata, J.; Nagamiya, S.; Nagle, J. L.; Nakamura, T.; Nandi, B. K.; Nara, M.; Newby, J.; Nilsson, P.; Nyanin, A. S.; Nystrand, J.; O'Brien, E.; Ogilvie, C. A.; Ohnishi, H.; Ojha, I. D.; Okada, K.; Ono, M.; Onuchin, V.; Oskarsson, A.; Otterlund, I.; Oyama, K.; Ozawa, K.; Pal, D.; Palounek, A. P T; Pantuev, V.; Papavassiliou, V.; Park, J.; Parmar, A.; Pate, S. F.; Peitzmann, T.; Peng, J. C.; Peresedov, V.; Pinkenburg, C.; Pisani, R. P.; Plasil, F.; Purschke, M. L.; Purwar, A. K.; Rak, J.; Ravinovich, I.; Read, K. F.; Reuter, M.; Reygers, K.; Riabov, V.; Riabov, Y.; Roche, G.; Romana, A.; Rosati, M.; Rosnet, P.; Ryu, S. S.; Sadler, M. E.; Saito, N.; Sakaguchi, T.; Sakai, M.; Sakai, S.; Samsonov, V.; Sanfratello, L.; Santo, R.; Sato, H. D.; Sato, S.; Sawada, S.; Schutz, Y.; Semenov, V.; Seto, R.; Shaw, M. R.; Shea, T. K.; Shibata, T. A.; Shigaki, K.; Shiina, T.; Silva, C. L.; Silvermyr, D.; Sim, K. S.; Singh, C. P.; Singh, V.; Sivertz, M.; Soldatov, A.; Soltz, R. A.; Sondheim, W. E.; Sorensen, S. P.; Sourikova, I. V.; Staley, F.; Stankus, P. W.; Stenlund, E.; Stepanov, M.; Ster, A.; Stoll, S. P.; Sugitate, T.; Sullivan, J. P.; Takagui, E. M.; Taketani, A.; Tamai, M.; Tanaka, K. H.; Tanaka, Y.; Tanida, K.; Tannenbaum, M. J.; Tarján, P.; Tepe, J. D.; Thomas, T. L.; Tojo, J.; Torii, H.; Towell, R. S.; Tserruya, I.; Tsuruoka, H.; Tuli, S. K.; Tydesjö, H.; Tyurin, N.; Van Hecke, H. W.; Velkovska, J.; Velkovsky, M.; Veszprémi, V.; Villatte, L.; Vinogradov, A. A.; Volkov, M. A.; Vznuzdaev, E.; Wang, X. R.; Watanabe, Y.; White, S. N.; Wohn, F. K.; Woody, C. L.; Xie, W.; Yang, Y.; Yanovich, A.; Yokkaichi, S.; Young, G. R.; Yushmanov, I. E.; Zajc, W. A.; Zhang, C.; Zhou, S.; Zhou, S. J.; Zolin, L.

In: Physical Review C - Nuclear Physics, Vol. 76, No. 3, 034904, 25.09.2007.

Research output: Contribution to journalArticle

Adler, SS, Afanasiev, S, Aidala, C, Ajitanand, NN, Akiba, Y, Alexander, J, Amirikas, R, Aphecetche, L, Aronson, SH, Averbeck, R, Awes, TC, Azmoun, R, Babinstev, V, Baldisseri, A, Barish, KN, Barnes, PD, Bassalleck, B, Bathe, S, Batsouli, S, Baublis, V, Bazilevsky, A, Belikov, S, Berndnikov, Y, Bhagavatula, S, Boissevain, JG, Borel, H, Borenstein, S, Brooks, ML, Brown, DS, Bruner, N, Bucher, D, Buesching, H, Bumazhnov, V, Bunce, G, Burward-Hoy, JM, Butsyk, S, Camard, X, Chai, JS, Chand, P, Chang, WC, Chernichenko, S, Chi, CY, Chiba, J, Chiu, M, Choi, IJ, Choi, J, Choudhury, RK, Chujo, T, Cianciolo, V, Cobigo, Y, Cole, BA, Constantin, P, D'Enterria, D, David, G, Delagrange, H, Denisov, A, Deshpande, A, Desmond, EJ, Devismes, A, Dietzsch, O, Drapier, O, Drees, A, Drees, KA, Du Rietz, R, Durum, A, Dutta, D, Efremenko, YV, Chenawi, KE, Enokizono, A, En'Yo, H, Esumi, S, Ewell, L, Fields, DE, Fleuret, F, Fokin, SL, Fox, BD, Fraenkel, Z, Frantz, JE, Franz, A, Frawley, AD, Fung, SY, Garpman, S, Ghosh, TK, Glenn, A, Gogiberidze, G, Gonin, M, Gosset, J, Goto, Y, Cassagnac, RGD, Grau, N, Greene, SV, Perdekamp, MG, Guryn, W, Gustafsson, HÅ, Hachiya, T, Haggerty, JS, Hamagaki, H, Hansen, AG, Hartouni, EP, Harvey, M, Hayano, R, Hayashi, N, He, X, Heffner, M, Hemmick, TK, Heuser, JM, Hibino, M, Hill, JC, Holzmann, W, Homma, K, Hong, B, Hoover, A, Ichihara, T, Ikonnikov, VV, Imai, K, Isenhower, D, Ishihara, M, Issah, M, Isupov, A, Jacak, BV, Jang, WY, Jeong, Y, Jia, J, Jinnouchi, O, Johnson, BM, Johnson, SC, Joo, KS, Jouan, D, Kametani, S, Kamihara, N, Kang, JH, Kapoor, SS, Katou, K, Kelly, S, Khachaturov, B, Khanzadeev, A, Kikuchi, J, Kim, DH, Kim, DJ, Kim, DW, Kim, E, Kim, GB, Kim, HJ, Kistenev, E, Kiyomichi, A, Kiyoyama, K, Klein-Boesing, C, Kobayashi, H, Kochenda, L, Kochetkov, V, Koehler, D, Kohama, T, Kopytine, M, Kotchetkov, D, Kozlov, A, Kroon, PJ, Kuberg, CH, Kurita, K, Kuroki, Y, Kweon, MJ, Kwon, Y, Kyle, GS, Lacey, R, Ladygin, V, Lajoie, JG, Lebedev, A, Leckey, S, Lee, DM, Lee, S, Leitch, MJ, Li, XH, Lim, H, Litvinenko, A, Liu, MX, Liu, Y, Maguire, CF, Makdisi, YI, Malakhov, A, Manko, VI, Mao, Y, Martinez, G, Marx, MD, Masui, H, Matathias, F, Matsumoto, T, McGaughey, PL, Melnikov, E, Messer, F, Miake, Y, Milan, J, Miller, TE, Milov, A, Mioduszewski, S, Mischke, RE, Mishra, GC, Mitchell, JT, Mohanty, AK, Morrison, DP, Moss, JM, Mühlbacher, F, Mukhopadhyay, D, Muniruzzaman, M, Murata, J, Nagamiya, S, Nagle, JL, Nakamura, T, Nandi, BK, Nara, M, Newby, J, Nilsson, P, Nyanin, AS, Nystrand, J, O'Brien, E, Ogilvie, CA, Ohnishi, H, Ojha, ID, Okada, K, Ono, M, Onuchin, V, Oskarsson, A, Otterlund, I, Oyama, K, Ozawa, K, Pal, D, Palounek, APT, Pantuev, V, Papavassiliou, V, Park, J, Parmar, A, Pate, SF, Peitzmann, T, Peng, JC, Peresedov, V, Pinkenburg, C, Pisani, RP, Plasil, F, Purschke, ML, Purwar, AK, Rak, J, Ravinovich, I, Read, KF, Reuter, M, Reygers, K, Riabov, V, Riabov, Y, Roche, G, Romana, A, Rosati, M, Rosnet, P, Ryu, SS, Sadler, ME, Saito, N, Sakaguchi, T, Sakai, M, Sakai, S, Samsonov, V, Sanfratello, L, Santo, R, Sato, HD, Sato, S, Sawada, S, Schutz, Y, Semenov, V, Seto, R, Shaw, MR, Shea, TK, Shibata, TA, Shigaki, K, Shiina, T, Silva, CL, Silvermyr, D, Sim, KS, Singh, CP, Singh, V, Sivertz, M, Soldatov, A, Soltz, RA, Sondheim, WE, Sorensen, SP, Sourikova, IV, Staley, F, Stankus, PW, Stenlund, E, Stepanov, M, Ster, A, Stoll, SP, Sugitate, T, Sullivan, JP, Takagui, EM, Taketani, A, Tamai, M, Tanaka, KH, Tanaka, Y, Tanida, K, Tannenbaum, MJ, Tarján, P, Tepe, JD, Thomas, TL, Tojo, J, Torii, H, Towell, RS, Tserruya, I, Tsuruoka, H, Tuli, SK, Tydesjö, H, Tyurin, N, Van Hecke, HW, Velkovska, J, Velkovsky, M, Veszprémi, V, Villatte, L, Vinogradov, AA, Volkov, MA, Vznuzdaev, E, Wang, XR, Watanabe, Y, White, SN, Wohn, FK, Woody, CL, Xie, W, Yang, Y, Yanovich, A, Yokkaichi, S, Young, GR, Yushmanov, IE, Zajc, WA, Zhang, C, Zhou, S, Zhou, SJ & Zolin, L 2007, 'Detailed study of high-pT neutral pion suppression and azimuthal anisotropy in Au+Au collisions at sNN=200 GeV', Physical Review C - Nuclear Physics, vol. 76, no. 3, 034904. https://doi.org/10.1103/PhysRevC.76.034904
Adler, S. S. ; Afanasiev, S. ; Aidala, C. ; Ajitanand, N. N. ; Akiba, Y. ; Alexander, J. ; Amirikas, R. ; Aphecetche, L. ; Aronson, S. H. ; Averbeck, R. ; Awes, T. C. ; Azmoun, R. ; Babinstev, V. ; Baldisseri, A. ; Barish, K. N. ; Barnes, P. D. ; Bassalleck, B. ; Bathe, S. ; Batsouli, S. ; Baublis, V. ; Bazilevsky, A. ; Belikov, S. ; Berndnikov, Y. ; Bhagavatula, S. ; Boissevain, J. G. ; Borel, H. ; Borenstein, S. ; Brooks, M. L. ; Brown, D. S. ; Bruner, N. ; Bucher, D. ; Buesching, H. ; Bumazhnov, V. ; Bunce, G. ; Burward-Hoy, J. M. ; Butsyk, S. ; Camard, X. ; Chai, J. S. ; Chand, P. ; Chang, W. C. ; Chernichenko, S. ; Chi, C. Y. ; Chiba, J. ; Chiu, M. ; Choi, I. J. ; Choi, J. ; Choudhury, R. K. ; Chujo, T. ; Cianciolo, V. ; Cobigo, Y. ; Cole, B. A. ; Constantin, P. ; D'Enterria, D. ; David, G. ; Delagrange, H. ; Denisov, A. ; Deshpande, A. ; Desmond, E. J. ; Devismes, A. ; Dietzsch, O. ; Drapier, O. ; Drees, A. ; Drees, K. A. ; Du Rietz, R. ; Durum, A. ; Dutta, D. ; Efremenko, Y. V. ; Chenawi, K. El ; Enokizono, A. ; En'Yo, H. ; Esumi, S. ; Ewell, L. ; Fields, D. E. ; Fleuret, F. ; Fokin, S. L. ; Fox, B. D. ; Fraenkel, Z. ; Frantz, J. E. ; Franz, A. ; Frawley, A. D. ; Fung, S. Y. ; Garpman, S. ; Ghosh, T. K. ; Glenn, A. ; Gogiberidze, G. ; Gonin, M. ; Gosset, J. ; Goto, Y. ; Cassagnac, R. Granier De ; Grau, N. ; Greene, S. V. ; Perdekamp, M. Grosse ; Guryn, W. ; Gustafsson, H. Å ; Hachiya, T. ; Haggerty, J. S. ; Hamagaki, H. ; Hansen, A. G. ; Hartouni, E. P. ; Harvey, M. ; Hayano, R. ; Hayashi, N. ; He, X. ; Heffner, M. ; Hemmick, T. K. ; Heuser, J. M. ; Hibino, M. ; Hill, J. C. ; Holzmann, W. ; Homma, K. ; Hong, B. ; Hoover, A. ; Ichihara, T. ; Ikonnikov, V. V. ; Imai, K. ; Isenhower, D. ; Ishihara, M. ; Issah, M. ; Isupov, A. ; Jacak, B. V. ; Jang, W. Y. ; Jeong, Y. ; Jia, J. ; Jinnouchi, O. ; Johnson, B. M. ; Johnson, S. C. ; Joo, K. S. ; Jouan, D. ; Kametani, S. ; Kamihara, N. ; Kang, J. H. ; Kapoor, S. S. ; Katou, K. ; Kelly, S. ; Khachaturov, B. ; Khanzadeev, A. ; Kikuchi, J. ; Kim, D. H. ; Kim, D. J. ; Kim, D. W. ; Kim, E. ; Kim, G. B. ; Kim, H. J. ; Kistenev, E. ; Kiyomichi, A. ; Kiyoyama, K. ; Klein-Boesing, C. ; Kobayashi, H. ; Kochenda, L. ; Kochetkov, V. ; Koehler, D. ; Kohama, T. ; Kopytine, M. ; Kotchetkov, D. ; Kozlov, A. ; Kroon, P. J. ; Kuberg, C. H. ; Kurita, K. ; Kuroki, Y. ; Kweon, M. J. ; Kwon, Y. ; Kyle, G. S. ; Lacey, R. ; Ladygin, V. ; Lajoie, J. G. ; Lebedev, A. ; Leckey, S. ; Lee, D. M. ; Lee, S. ; Leitch, M. J. ; Li, X. H. ; Lim, H. ; Litvinenko, A. ; Liu, M. X. ; Liu, Y. ; Maguire, C. F. ; Makdisi, Y. I. ; Malakhov, A. ; Manko, V. I. ; Mao, Y. ; Martinez, G. ; Marx, M. D. ; Masui, H. ; Matathias, F. ; Matsumoto, T. ; McGaughey, P. L. ; Melnikov, E. ; Messer, F. ; Miake, Y. ; Milan, J. ; Miller, T. E. ; Milov, A. ; Mioduszewski, S. ; Mischke, R. E. ; Mishra, G. C. ; Mitchell, J. T. ; Mohanty, A. K. ; Morrison, D. P. ; Moss, J. M. ; Mühlbacher, F. ; Mukhopadhyay, D. ; Muniruzzaman, M. ; Murata, J. ; Nagamiya, S. ; Nagle, J. L. ; Nakamura, T. ; Nandi, B. K. ; Nara, M. ; Newby, J. ; Nilsson, P. ; Nyanin, A. S. ; Nystrand, J. ; O'Brien, E. ; Ogilvie, C. A. ; Ohnishi, H. ; Ojha, I. D. ; Okada, K. ; Ono, M. ; Onuchin, V. ; Oskarsson, A. ; Otterlund, I. ; Oyama, K. ; Ozawa, K. ; Pal, D. ; Palounek, A. P T ; Pantuev, V. ; Papavassiliou, V. ; Park, J. ; Parmar, A. ; Pate, S. F. ; Peitzmann, T. ; Peng, J. C. ; Peresedov, V. ; Pinkenburg, C. ; Pisani, R. P. ; Plasil, F. ; Purschke, M. L. ; Purwar, A. K. ; Rak, J. ; Ravinovich, I. ; Read, K. F. ; Reuter, M. ; Reygers, K. ; Riabov, V. ; Riabov, Y. ; Roche, G. ; Romana, A. ; Rosati, M. ; Rosnet, P. ; Ryu, S. S. ; Sadler, M. E. ; Saito, N. ; Sakaguchi, T. ; Sakai, M. ; Sakai, S. ; Samsonov, V. ; Sanfratello, L. ; Santo, R. ; Sato, H. D. ; Sato, S. ; Sawada, S. ; Schutz, Y. ; Semenov, V. ; Seto, R. ; Shaw, M. R. ; Shea, T. K. ; Shibata, T. A. ; Shigaki, K. ; Shiina, T. ; Silva, C. L. ; Silvermyr, D. ; Sim, K. S. ; Singh, C. P. ; Singh, V. ; Sivertz, M. ; Soldatov, A. ; Soltz, R. A. ; Sondheim, W. E. ; Sorensen, S. P. ; Sourikova, I. V. ; Staley, F. ; Stankus, P. W. ; Stenlund, E. ; Stepanov, M. ; Ster, A. ; Stoll, S. P. ; Sugitate, T. ; Sullivan, J. P. ; Takagui, E. M. ; Taketani, A. ; Tamai, M. ; Tanaka, K. H. ; Tanaka, Y. ; Tanida, K. ; Tannenbaum, M. J. ; Tarján, P. ; Tepe, J. D. ; Thomas, T. L. ; Tojo, J. ; Torii, H. ; Towell, R. S. ; Tserruya, I. ; Tsuruoka, H. ; Tuli, S. K. ; Tydesjö, H. ; Tyurin, N. ; Van Hecke, H. W. ; Velkovska, J. ; Velkovsky, M. ; Veszprémi, V. ; Villatte, L. ; Vinogradov, A. A. ; Volkov, M. A. ; Vznuzdaev, E. ; Wang, X. R. ; Watanabe, Y. ; White, S. N. ; Wohn, F. K. ; Woody, C. L. ; Xie, W. ; Yang, Y. ; Yanovich, A. ; Yokkaichi, S. ; Young, G. R. ; Yushmanov, I. E. ; Zajc, W. A. ; Zhang, C. ; Zhou, S. ; Zhou, S. J. ; Zolin, L. / Detailed study of high-pT neutral pion suppression and azimuthal anisotropy in Au+Au collisions at sNN=200 GeV. In: Physical Review C - Nuclear Physics. 2007 ; Vol. 76, No. 3.
@article{d88a2fe3a7ef43ee948392ec7dac66cd,
title = "Detailed study of high-pT neutral pion suppression and azimuthal anisotropy in Au+Au collisions at sNN=200 GeV",
abstract = "Measurements of neutral pion (π0) production at midrapidity in sNN=200 GeV Au+Au collisions as a function of transverse momentum, pT, collision centrality, and angle with respect to reaction plane are presented. The data represent the final π0 results from the PHENIX experiment for the first RHIC Au+Au run at design center-of-mass energy. They include additional data obtained using the PHENIX Level-2 trigger with more than a factor of 3 increase in statistics over previously published results for pT>6 GeV/c. We evaluate the suppression in the yield of high-pT π0's relative to pointlike scaling expectations using the nuclear modification factor RAA. We present the pT dependence of RAA for nine bins in collision centrality. We separately integrate RAA over larger pT bins to show more precisely the centrality dependence of the high-pT suppression. We then evaluate the dependence of the high-pT suppression on the emission angle Δ of the pions with respect to event reaction plane for seven bins in collision centrality. We show that the yields of high-pT π0's vary strongly with Δ, consistent with prior measurements. We show that this variation persists in the most peripheral bin accessible in this analysis. For the peripheral bins we observe no suppression for neutral pions produced aligned with the reaction plane, whereas the yield of π0's produced perpendicular to the reaction plane is suppressed by a factor of ~2. We analyze the combined centrality and Δ dependence of the π0 suppression in different pT bins using different possible descriptions of parton energy loss dependence on jet path-length averages to determine whether a single geometric picture can explain the observed suppression pattern.",
author = "Adler, {S. S.} and S. Afanasiev and C. Aidala and Ajitanand, {N. N.} and Y. Akiba and J. Alexander and R. Amirikas and L. Aphecetche and Aronson, {S. H.} and R. Averbeck and Awes, {T. C.} and R. Azmoun and V. Babinstev and A. Baldisseri and Barish, {K. N.} and Barnes, {P. D.} and B. Bassalleck and S. Bathe and S. Batsouli and V. Baublis and A. Bazilevsky and S. Belikov and Y. Berndnikov and S. Bhagavatula and Boissevain, {J. G.} and H. Borel and S. Borenstein and Brooks, {M. L.} and Brown, {D. S.} and N. Bruner and D. Bucher and H. Buesching and V. Bumazhnov and G. Bunce and Burward-Hoy, {J. M.} and S. Butsyk and X. Camard and Chai, {J. S.} and P. Chand and Chang, {W. C.} and S. Chernichenko and Chi, {C. Y.} and J. Chiba and M. Chiu and Choi, {I. J.} and J. Choi and Choudhury, {R. K.} and T. Chujo and V. Cianciolo and Y. Cobigo and Cole, {B. A.} and P. Constantin and D. D'Enterria and G. David and H. Delagrange and A. Denisov and A. Deshpande and Desmond, {E. J.} and A. Devismes and O. Dietzsch and O. Drapier and A. Drees and Drees, {K. A.} and {Du Rietz}, R. and A. Durum and D. Dutta and Efremenko, {Y. V.} and Chenawi, {K. El} and A. Enokizono and H. En'Yo and S. Esumi and L. Ewell and Fields, {D. E.} and F. Fleuret and Fokin, {S. L.} and Fox, {B. D.} and Z. Fraenkel and Frantz, {J. E.} and A. Franz and Frawley, {A. D.} and Fung, {S. Y.} and S. Garpman and Ghosh, {T. K.} and A. Glenn and G. Gogiberidze and M. Gonin and J. Gosset and Y. Goto and Cassagnac, {R. Granier De} and N. Grau and Greene, {S. V.} and Perdekamp, {M. Grosse} and W. Guryn and Gustafsson, {H. {\AA}} and T. Hachiya and Haggerty, {J. S.} and H. Hamagaki and Hansen, {A. G.} and Hartouni, {E. P.} and M. Harvey and R. Hayano and N. Hayashi and X. He and M. Heffner and Hemmick, {T. K.} and Heuser, {J. M.} and M. Hibino and Hill, {J. C.} and W. Holzmann and K. Homma and B. Hong and A. Hoover and T. Ichihara and Ikonnikov, {V. V.} and K. Imai and D. Isenhower and M. Ishihara and M. Issah and A. Isupov and Jacak, {B. V.} and Jang, {W. Y.} and Y. Jeong and J. Jia and O. Jinnouchi and Johnson, {B. M.} and Johnson, {S. C.} and Joo, {K. S.} and D. Jouan and S. Kametani and N. Kamihara and Kang, {J. H.} and Kapoor, {S. S.} and K. Katou and S. Kelly and B. Khachaturov and A. Khanzadeev and J. Kikuchi and Kim, {D. H.} and Kim, {D. J.} and Kim, {D. W.} and E. Kim and Kim, {G. B.} and Kim, {H. J.} and E. Kistenev and A. Kiyomichi and K. Kiyoyama and C. Klein-Boesing and H. Kobayashi and L. Kochenda and V. Kochetkov and D. Koehler and T. Kohama and M. Kopytine and D. Kotchetkov and A. Kozlov and Kroon, {P. J.} and Kuberg, {C. H.} and K. Kurita and Y. Kuroki and Kweon, {M. J.} and Y. Kwon and Kyle, {G. S.} and R. Lacey and V. Ladygin and Lajoie, {J. G.} and A. Lebedev and S. Leckey and Lee, {D. M.} and S. Lee and Leitch, {M. J.} and Li, {X. H.} and H. Lim and A. Litvinenko and Liu, {M. X.} and Y. Liu and Maguire, {C. F.} and Makdisi, {Y. I.} and A. Malakhov and Manko, {V. I.} and Y. Mao and G. Martinez and Marx, {M. D.} and H. Masui and F. Matathias and T. Matsumoto and McGaughey, {P. L.} and E. Melnikov and F. Messer and Y. Miake and J. Milan and Miller, {T. E.} and A. Milov and S. Mioduszewski and Mischke, {R. E.} and Mishra, {G. C.} and Mitchell, {J. T.} and Mohanty, {A. K.} and Morrison, {D. P.} and Moss, {J. M.} and F. M{\"u}hlbacher and D. Mukhopadhyay and M. Muniruzzaman and J. Murata and S. Nagamiya and Nagle, {J. L.} and T. Nakamura and Nandi, {B. K.} and M. Nara and J. Newby and P. Nilsson and Nyanin, {A. S.} and J. Nystrand and E. O'Brien and Ogilvie, {C. A.} and H. Ohnishi and Ojha, {I. D.} and K. Okada and M. Ono and V. Onuchin and A. Oskarsson and I. Otterlund and K. Oyama and K. Ozawa and D. Pal and Palounek, {A. P T} and V. Pantuev and V. Papavassiliou and J. Park and A. Parmar and Pate, {S. F.} and T. Peitzmann and Peng, {J. C.} and V. Peresedov and C. Pinkenburg and Pisani, {R. P.} and F. Plasil and Purschke, {M. L.} and Purwar, {A. K.} and J. Rak and I. Ravinovich and Read, {K. F.} and M. Reuter and K. Reygers and V. Riabov and Y. Riabov and G. Roche and A. Romana and M. Rosati and P. Rosnet and Ryu, {S. S.} and Sadler, {M. E.} and N. Saito and T. Sakaguchi and M. Sakai and S. Sakai and V. Samsonov and L. Sanfratello and R. Santo and Sato, {H. D.} and S. Sato and S. Sawada and Y. Schutz and V. Semenov and R. Seto and Shaw, {M. R.} and Shea, {T. K.} and Shibata, {T. A.} and K. Shigaki and T. Shiina and Silva, {C. L.} and D. Silvermyr and Sim, {K. S.} and Singh, {C. P.} and V. Singh and M. Sivertz and A. Soldatov and Soltz, {R. A.} and Sondheim, {W. E.} and Sorensen, {S. P.} and Sourikova, {I. V.} and F. Staley and Stankus, {P. W.} and E. Stenlund and M. Stepanov and A. Ster and Stoll, {S. P.} and T. Sugitate and Sullivan, {J. P.} and Takagui, {E. M.} and A. Taketani and M. Tamai and Tanaka, {K. H.} and Y. Tanaka and K. Tanida and Tannenbaum, {M. J.} and P. Tarj{\'a}n and Tepe, {J. D.} and Thomas, {T. L.} and J. Tojo and H. Torii and Towell, {R. S.} and I. Tserruya and H. Tsuruoka and Tuli, {S. K.} and H. Tydesj{\"o} and N. Tyurin and {Van Hecke}, {H. W.} and J. Velkovska and M. Velkovsky and V. Veszpr{\'e}mi and L. Villatte and Vinogradov, {A. A.} and Volkov, {M. A.} and E. Vznuzdaev and Wang, {X. R.} and Y. Watanabe and White, {S. N.} and Wohn, {F. K.} and Woody, {C. L.} and W. Xie and Y. Yang and A. Yanovich and S. Yokkaichi and Young, {G. R.} and Yushmanov, {I. E.} and Zajc, {W. A.} and C. Zhang and S. Zhou and Zhou, {S. J.} and L. Zolin",
year = "2007",
month = "9",
day = "25",
doi = "10.1103/PhysRevC.76.034904",
language = "English",
volume = "76",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "3",

}

TY - JOUR

T1 - Detailed study of high-pT neutral pion suppression and azimuthal anisotropy in Au+Au collisions at sNN=200 GeV

AU - Adler, S. S.

AU - Afanasiev, S.

AU - Aidala, C.

AU - Ajitanand, N. N.

AU - Akiba, Y.

AU - Alexander, J.

AU - Amirikas, R.

AU - Aphecetche, L.

AU - Aronson, S. H.

AU - Averbeck, R.

AU - Awes, T. C.

AU - Azmoun, R.

AU - Babinstev, V.

AU - Baldisseri, A.

AU - Barish, K. N.

AU - Barnes, P. D.

AU - Bassalleck, B.

AU - Bathe, S.

AU - Batsouli, S.

AU - Baublis, V.

AU - Bazilevsky, A.

AU - Belikov, S.

AU - Berndnikov, Y.

AU - Bhagavatula, S.

AU - Boissevain, J. G.

AU - Borel, H.

AU - Borenstein, S.

AU - Brooks, M. L.

AU - Brown, D. S.

AU - Bruner, N.

AU - Bucher, D.

AU - Buesching, H.

AU - Bumazhnov, V.

AU - Bunce, G.

AU - Burward-Hoy, J. M.

AU - Butsyk, S.

AU - Camard, X.

AU - Chai, J. S.

AU - Chand, P.

AU - Chang, W. C.

AU - Chernichenko, S.

AU - Chi, C. Y.

AU - Chiba, J.

AU - Chiu, M.

AU - Choi, I. J.

AU - Choi, J.

AU - Choudhury, R. K.

AU - Chujo, T.

AU - Cianciolo, V.

AU - Cobigo, Y.

AU - Cole, B. A.

AU - Constantin, P.

AU - D'Enterria, D.

AU - David, G.

AU - Delagrange, H.

AU - Denisov, A.

AU - Deshpande, A.

AU - Desmond, E. J.

AU - Devismes, A.

AU - Dietzsch, O.

AU - Drapier, O.

AU - Drees, A.

AU - Drees, K. A.

AU - Du Rietz, R.

AU - Durum, A.

AU - Dutta, D.

AU - Efremenko, Y. V.

AU - Chenawi, K. El

AU - Enokizono, A.

AU - En'Yo, H.

AU - Esumi, S.

AU - Ewell, L.

AU - Fields, D. E.

AU - Fleuret, F.

AU - Fokin, S. L.

AU - Fox, B. D.

AU - Fraenkel, Z.

AU - Frantz, J. E.

AU - Franz, A.

AU - Frawley, A. D.

AU - Fung, S. Y.

AU - Garpman, S.

AU - Ghosh, T. K.

AU - Glenn, A.

AU - Gogiberidze, G.

AU - Gonin, M.

AU - Gosset, J.

AU - Goto, Y.

AU - Cassagnac, R. Granier De

AU - Grau, N.

AU - Greene, S. V.

AU - Perdekamp, M. Grosse

AU - Guryn, W.

AU - Gustafsson, H. Å

AU - Hachiya, T.

AU - Haggerty, J. S.

AU - Hamagaki, H.

AU - Hansen, A. G.

AU - Hartouni, E. P.

AU - Harvey, M.

AU - Hayano, R.

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PY - 2007/9/25

Y1 - 2007/9/25

N2 - Measurements of neutral pion (π0) production at midrapidity in sNN=200 GeV Au+Au collisions as a function of transverse momentum, pT, collision centrality, and angle with respect to reaction plane are presented. The data represent the final π0 results from the PHENIX experiment for the first RHIC Au+Au run at design center-of-mass energy. They include additional data obtained using the PHENIX Level-2 trigger with more than a factor of 3 increase in statistics over previously published results for pT>6 GeV/c. We evaluate the suppression in the yield of high-pT π0's relative to pointlike scaling expectations using the nuclear modification factor RAA. We present the pT dependence of RAA for nine bins in collision centrality. We separately integrate RAA over larger pT bins to show more precisely the centrality dependence of the high-pT suppression. We then evaluate the dependence of the high-pT suppression on the emission angle Δ of the pions with respect to event reaction plane for seven bins in collision centrality. We show that the yields of high-pT π0's vary strongly with Δ, consistent with prior measurements. We show that this variation persists in the most peripheral bin accessible in this analysis. For the peripheral bins we observe no suppression for neutral pions produced aligned with the reaction plane, whereas the yield of π0's produced perpendicular to the reaction plane is suppressed by a factor of ~2. We analyze the combined centrality and Δ dependence of the π0 suppression in different pT bins using different possible descriptions of parton energy loss dependence on jet path-length averages to determine whether a single geometric picture can explain the observed suppression pattern.

AB - Measurements of neutral pion (π0) production at midrapidity in sNN=200 GeV Au+Au collisions as a function of transverse momentum, pT, collision centrality, and angle with respect to reaction plane are presented. The data represent the final π0 results from the PHENIX experiment for the first RHIC Au+Au run at design center-of-mass energy. They include additional data obtained using the PHENIX Level-2 trigger with more than a factor of 3 increase in statistics over previously published results for pT>6 GeV/c. We evaluate the suppression in the yield of high-pT π0's relative to pointlike scaling expectations using the nuclear modification factor RAA. We present the pT dependence of RAA for nine bins in collision centrality. We separately integrate RAA over larger pT bins to show more precisely the centrality dependence of the high-pT suppression. We then evaluate the dependence of the high-pT suppression on the emission angle Δ of the pions with respect to event reaction plane for seven bins in collision centrality. We show that the yields of high-pT π0's vary strongly with Δ, consistent with prior measurements. We show that this variation persists in the most peripheral bin accessible in this analysis. For the peripheral bins we observe no suppression for neutral pions produced aligned with the reaction plane, whereas the yield of π0's produced perpendicular to the reaction plane is suppressed by a factor of ~2. We analyze the combined centrality and Δ dependence of the π0 suppression in different pT bins using different possible descriptions of parton energy loss dependence on jet path-length averages to determine whether a single geometric picture can explain the observed suppression pattern.

UR - http://www.scopus.com/inward/record.url?scp=34848881889&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34848881889&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.76.034904

DO - 10.1103/PhysRevC.76.034904

M3 - Article

AN - SCOPUS:34848881889

VL - 76

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 3

M1 - 034904

ER -