Search for heavy neutral and charged leptons in e+e- annihilation at √s = 183 and 189 GeV

M. Acciarri, P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M. G. Alviggi, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelesen, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, L. Baksay, A. BalandrasR. C. Bail, S. Banerjee, Sw Banerjee, A. Barczyk, R. Barillère, L. Barone, P. Bartalini, M. Basile, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, J. Berdugo, P. Berges, B. Bertucci, B. L. Betev, S. Bhattacharya, M. Biasini, A. Biland, J. J. Blaising, S. C. Blyth, G. J. Bobbink, A. Böhm, L. Boldizsar, B. Borgia, D. Bourilkov, M. Bourquin, S. Braccini, J. G. Branson, V. Brigljevic, F. Brochu, A. Buffmi, A. Buijs, J. D. Burger, W. J. Burger, J. Busenitz, A. Button, X. D. Cai, M. Campanelli, M. Capell, G. Cara Romeo, G. Carlino, A. M. Cartacci, J. Casaus, G. Castellini, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, F. Cesaroni, M. Chamizo, Y. H. Chang, U. K. Chaturvedi, M. Chemarin, A. Chen, G. Chen, G. M. Chen, H. F. Chen, H. S. Chen, X. Chereau, G. Chiefari, L. Cifarelli, F. Cindolo, C. Civinini, I. Clare, R. Clare, G. Coignet, A. P. Colijn, N. Colino, S. Costantini, F. Cotorobai, B. Cozzoni, B. De La Cruz, A. Csilling, S. Cucciarelli, T. S. Dai, J. A. Van Dalen, R. D'Alessandro

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A search for unstable neutral and charged heavy leptons as well as for stable charged heavy leptons is performed at center-of-mass energies √s = 183 and 189 GeV with the L3 detector at LEP. No evidence for their existence is found. We exclude neutral heavy leptons which couple to the electron, muon or tau family, of the Dirac type for masses below 92.4, 93.3 and 83.3 GeV, and of the Majorana type for masses below 81.8, 84.1 and 73.5 GeV, respectively. We exclude unstable charged heavy leptons for masses below 93.9 GeV for a wide range of the associated neutral heavy lepton mass. If the unstable charged heavy lepton decays to a light neutrino, we exclude masses below 92.4 GeV. The production of stable charged heavy leptons with mass less than 93.5 GeV is also excluded.

Original languageEnglish
Pages (from-to)354-364
Number of pages11
JournalPhysics Letters B
Volume462
Issue number3-4
Publication statusPublished - 1999

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leptons
center of mass
muons
neutrinos
detectors
decay
electrons

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Acciarri, M., Achard, P., Adriani, O., Aguilar-Benitez, M., Alcaraz, J., Alemanni, G., ... D'Alessandro, R. (1999). Search for heavy neutral and charged leptons in e+e- annihilation at √s = 183 and 189 GeV. Physics Letters B, 462(3-4), 354-364.

Search for heavy neutral and charged leptons in e+e- annihilation at √s = 183 and 189 GeV. / Acciarri, M.; Achard, P.; Adriani, O.; Aguilar-Benitez, M.; Alcaraz, J.; Alemanni, G.; Allaby, J.; Aloisio, A.; Alviggi, M. G.; Ambrosi, G.; Anderhub, H.; Andreev, V. P.; Angelesen, T.; Anselmo, F.; Arefiev, A.; Azemoon, T.; Aziz, T.; Bagnaia, P.; Baksay, L.; Balandras, A.; Bail, R. C.; Banerjee, S.; Banerjee, Sw; Barczyk, A.; Barillère, R.; Barone, L.; Bartalini, P.; Basile, M.; Battiston, R.; Bay, A.; Becattini, F.; Becker, U.; Behner, F.; Berdugo, J.; Berges, P.; Bertucci, B.; Betev, B. L.; Bhattacharya, S.; Biasini, M.; Biland, A.; Blaising, J. J.; Blyth, S. C.; Bobbink, G. J.; Böhm, A.; Boldizsar, L.; Borgia, B.; Bourilkov, D.; Bourquin, M.; Braccini, S.; Branson, J. G.; Brigljevic, V.; Brochu, F.; Buffmi, A.; Buijs, A.; Burger, J. D.; Burger, W. J.; Busenitz, J.; Button, A.; Cai, X. D.; Campanelli, M.; Capell, M.; Cara Romeo, G.; Carlino, G.; Cartacci, A. M.; Casaus, J.; Castellini, G.; Cavallari, F.; Cavallo, N.; Cecchi, C.; Cerrada, M.; Cesaroni, F.; Chamizo, M.; Chang, Y. H.; Chaturvedi, U. K.; Chemarin, M.; Chen, A.; Chen, G.; Chen, G. M.; Chen, H. F.; Chen, H. S.; Chereau, X.; Chiefari, G.; Cifarelli, L.; Cindolo, F.; Civinini, C.; Clare, I.; Clare, R.; Coignet, G.; Colijn, A. P.; Colino, N.; Costantini, S.; Cotorobai, F.; Cozzoni, B.; De La Cruz, B.; Csilling, A.; Cucciarelli, S.; Dai, T. S.; Van Dalen, J. A.; D'Alessandro, R.

In: Physics Letters B, Vol. 462, No. 3-4, 1999, p. 354-364.

Research output: Contribution to journalArticle

Acciarri, M, Achard, P, Adriani, O, Aguilar-Benitez, M, Alcaraz, J, Alemanni, G, Allaby, J, Aloisio, A, Alviggi, MG, Ambrosi, G, Anderhub, H, Andreev, VP, Angelesen, T, Anselmo, F, Arefiev, A, Azemoon, T, Aziz, T, Bagnaia, P, Baksay, L, Balandras, A, Bail, RC, Banerjee, S, Banerjee, S, Barczyk, A, Barillère, R, Barone, L, Bartalini, P, Basile, M, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Berdugo, J, Berges, P, Bertucci, B, Betev, BL, Bhattacharya, S, Biasini, M, Biland, A, Blaising, JJ, Blyth, SC, Bobbink, GJ, Böhm, A, Boldizsar, L, Borgia, B, Bourilkov, D, Bourquin, M, Braccini, S, Branson, JG, Brigljevic, V, Brochu, F, Buffmi, A, Buijs, A, Burger, JD, Burger, WJ, Busenitz, J, Button, A, Cai, XD, Campanelli, M, Capell, M, Cara Romeo, G, Carlino, G, Cartacci, AM, Casaus, J, Castellini, G, Cavallari, F, Cavallo, N, Cecchi, C, Cerrada, M, Cesaroni, F, Chamizo, M, Chang, YH, Chaturvedi, UK, Chemarin, M, Chen, A, Chen, G, Chen, GM, Chen, HF, Chen, HS, Chereau, X, Chiefari, G, Cifarelli, L, Cindolo, F, Civinini, C, Clare, I, Clare, R, Coignet, G, Colijn, AP, Colino, N, Costantini, S, Cotorobai, F, Cozzoni, B, De La Cruz, B, Csilling, A, Cucciarelli, S, Dai, TS, Van Dalen, JA & D'Alessandro, R 1999, 'Search for heavy neutral and charged leptons in e+e- annihilation at √s = 183 and 189 GeV', Physics Letters B, vol. 462, no. 3-4, pp. 354-364.
Acciarri M, Achard P, Adriani O, Aguilar-Benitez M, Alcaraz J, Alemanni G et al. Search for heavy neutral and charged leptons in e+e- annihilation at √s = 183 and 189 GeV. Physics Letters B. 1999;462(3-4):354-364.
Acciarri, M. ; Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; Alcaraz, J. ; Alemanni, G. ; Allaby, J. ; Aloisio, A. ; Alviggi, M. G. ; Ambrosi, G. ; Anderhub, H. ; Andreev, V. P. ; Angelesen, T. ; Anselmo, F. ; Arefiev, A. ; Azemoon, T. ; Aziz, T. ; Bagnaia, P. ; Baksay, L. ; Balandras, A. ; Bail, R. C. ; Banerjee, S. ; Banerjee, Sw ; Barczyk, A. ; Barillère, R. ; Barone, L. ; Bartalini, P. ; Basile, M. ; Battiston, R. ; Bay, A. ; Becattini, F. ; Becker, U. ; Behner, F. ; Berdugo, J. ; Berges, P. ; Bertucci, B. ; Betev, B. L. ; Bhattacharya, S. ; Biasini, M. ; Biland, A. ; Blaising, J. J. ; Blyth, S. C. ; Bobbink, G. J. ; Böhm, A. ; Boldizsar, L. ; Borgia, B. ; Bourilkov, D. ; Bourquin, M. ; Braccini, S. ; Branson, J. G. ; Brigljevic, V. ; Brochu, F. ; Buffmi, A. ; Buijs, A. ; Burger, J. D. ; Burger, W. J. ; Busenitz, J. ; Button, A. ; Cai, X. D. ; Campanelli, M. ; Capell, M. ; Cara Romeo, G. ; Carlino, G. ; Cartacci, A. M. ; Casaus, J. ; Castellini, G. ; Cavallari, F. ; Cavallo, N. ; Cecchi, C. ; Cerrada, M. ; Cesaroni, F. ; Chamizo, M. ; Chang, Y. H. ; Chaturvedi, U. K. ; Chemarin, M. ; Chen, A. ; Chen, G. ; Chen, G. M. ; Chen, H. F. ; Chen, H. S. ; Chereau, X. ; Chiefari, G. ; Cifarelli, L. ; Cindolo, F. ; Civinini, C. ; Clare, I. ; Clare, R. ; Coignet, G. ; Colijn, A. P. ; Colino, N. ; Costantini, S. ; Cotorobai, F. ; Cozzoni, B. ; De La Cruz, B. ; Csilling, A. ; Cucciarelli, S. ; Dai, T. S. ; Van Dalen, J. A. ; D'Alessandro, R. / Search for heavy neutral and charged leptons in e+e- annihilation at √s = 183 and 189 GeV. In: Physics Letters B. 1999 ; Vol. 462, No. 3-4. pp. 354-364.
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abstract = "A search for unstable neutral and charged heavy leptons as well as for stable charged heavy leptons is performed at center-of-mass energies √s = 183 and 189 GeV with the L3 detector at LEP. No evidence for their existence is found. We exclude neutral heavy leptons which couple to the electron, muon or tau family, of the Dirac type for masses below 92.4, 93.3 and 83.3 GeV, and of the Majorana type for masses below 81.8, 84.1 and 73.5 GeV, respectively. We exclude unstable charged heavy leptons for masses below 93.9 GeV for a wide range of the associated neutral heavy lepton mass. If the unstable charged heavy lepton decays to a light neutrino, we exclude masses below 92.4 GeV. The production of stable charged heavy leptons with mass less than 93.5 GeV is also excluded.",
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TY - JOUR

T1 - Search for heavy neutral and charged leptons in e+e- annihilation at √s = 183 and 189 GeV

AU - Acciarri, M.

AU - Achard, P.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Alcaraz, J.

AU - Alemanni, G.

AU - Allaby, J.

AU - Aloisio, A.

AU - Alviggi, M. G.

AU - Ambrosi, G.

AU - Anderhub, H.

AU - Andreev, V. P.

AU - Angelesen, T.

AU - Anselmo, F.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Bagnaia, P.

AU - Baksay, L.

AU - Balandras, A.

AU - Bail, R. C.

AU - Banerjee, S.

AU - Banerjee, Sw

AU - Barczyk, A.

AU - Barillère, R.

AU - Barone, L.

AU - Bartalini, P.

AU - Basile, M.

AU - Battiston, R.

AU - Bay, A.

AU - Becattini, F.

AU - Becker, U.

AU - Behner, F.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Bhattacharya, S.

AU - Biasini, M.

AU - Biland, A.

AU - Blaising, J. J.

AU - Blyth, S. C.

AU - Bobbink, G. J.

AU - Böhm, A.

AU - Boldizsar, L.

AU - Borgia, B.

AU - Bourilkov, D.

AU - Bourquin, M.

AU - Braccini, S.

AU - Branson, J. G.

AU - Brigljevic, V.

AU - Brochu, F.

AU - Buffmi, A.

AU - Buijs, A.

AU - Burger, J. D.

AU - Burger, W. J.

AU - Busenitz, J.

AU - Button, A.

AU - Cai, X. D.

AU - Campanelli, M.

AU - Capell, M.

AU - Cara Romeo, G.

AU - Carlino, G.

AU - Cartacci, A. M.

AU - Casaus, J.

AU - Castellini, G.

AU - Cavallari, F.

AU - Cavallo, N.

AU - Cecchi, C.

AU - Cerrada, M.

AU - Cesaroni, F.

AU - Chamizo, M.

AU - Chang, Y. H.

AU - Chaturvedi, U. K.

AU - Chemarin, M.

AU - Chen, A.

AU - Chen, G.

AU - Chen, G. M.

AU - Chen, H. F.

AU - Chen, H. S.

AU - Chereau, X.

AU - Chiefari, G.

AU - Cifarelli, L.

AU - Cindolo, F.

AU - Civinini, C.

AU - Clare, I.

AU - Clare, R.

AU - Coignet, G.

AU - Colijn, A. P.

AU - Colino, N.

AU - Costantini, S.

AU - Cotorobai, F.

AU - Cozzoni, B.

AU - De La Cruz, B.

AU - Csilling, A.

AU - Cucciarelli, S.

AU - Dai, T. S.

AU - Van Dalen, J. A.

AU - D'Alessandro, R.

PY - 1999

Y1 - 1999

N2 - A search for unstable neutral and charged heavy leptons as well as for stable charged heavy leptons is performed at center-of-mass energies √s = 183 and 189 GeV with the L3 detector at LEP. No evidence for their existence is found. We exclude neutral heavy leptons which couple to the electron, muon or tau family, of the Dirac type for masses below 92.4, 93.3 and 83.3 GeV, and of the Majorana type for masses below 81.8, 84.1 and 73.5 GeV, respectively. We exclude unstable charged heavy leptons for masses below 93.9 GeV for a wide range of the associated neutral heavy lepton mass. If the unstable charged heavy lepton decays to a light neutrino, we exclude masses below 92.4 GeV. The production of stable charged heavy leptons with mass less than 93.5 GeV is also excluded.

AB - A search for unstable neutral and charged heavy leptons as well as for stable charged heavy leptons is performed at center-of-mass energies √s = 183 and 189 GeV with the L3 detector at LEP. No evidence for their existence is found. We exclude neutral heavy leptons which couple to the electron, muon or tau family, of the Dirac type for masses below 92.4, 93.3 and 83.3 GeV, and of the Majorana type for masses below 81.8, 84.1 and 73.5 GeV, respectively. We exclude unstable charged heavy leptons for masses below 93.9 GeV for a wide range of the associated neutral heavy lepton mass. If the unstable charged heavy lepton decays to a light neutrino, we exclude masses below 92.4 GeV. The production of stable charged heavy leptons with mass less than 93.5 GeV is also excluded.

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AN - SCOPUS:0001443489

VL - 462

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EP - 364

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 3-4

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