Search for lepton flavor violation in the decay τ±→μ±γ -: art. no. 041802

被引:1
|
作者
Aubert, B [1 ]
Barate, R
Boutigny, D
Couderc, F
Karyotakis, Y
Lees, JP
Poireau, V
Tisserand, V
Zghiche, A
Grauges-Pous, E
Palano, A
Pompili, A
Chen, JC
Qi, ND
Rong, G
Wang, P
Zhu, YS
Eigen, G
Ofte, I
Stugu, B
Abrams, GS
Borgland, AW
Breon, AB
Brown, DN
Button-Shafer, J
Cahn, RN
Charles, E
Day, CT
Gill, MS
Gritsan, AV
Groysman, Y
Jacobsen, RG
Kadel, RW
Kadyk, J
Kerth, LT
Kolomensky, YG
Kukartsev, G
Lynch, G
Mir, LM
Oddone, PJ
Orimoto, TJ
Pripstein, M
Roe, NA
Ronan, MT
Wenzel, WA
Barrett, M
Ford, KE
Harrison, TJ
Hart, AJ
Hawkes, CM
机构
[1] Phys Particules Lab, F-74941 Annecy Le Vieux, France
[2] Univ Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain
[3] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy
[4] Ist Nazl Fis Nucl, I-70126 Bari, Italy
[5] Inst High Energy Phys, Beijing 100039, Peoples R China
[6] Univ Bergen, Inst Phys, N-5007 Bergen, Norway
[7] Univ Calif Berkeley, Berkeley, CA 94720 USA
[8] Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[9] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[10] Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany
[11] Univ Bristol, Bristol BS8 1TL, Avon, England
[12] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada
[13] Brunel Univ, Uxbridge UB8 3PH, Middx, England
[14] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[15] Univ Calif Irvine, Irvine, CA 92697 USA
[16] Univ Calif Los Angeles, Los Angeles, CA 90024 USA
[17] Univ Calif Riverside, Riverside, CA 92521 USA
[18] Univ Calif San Diego, La Jolla, CA 92093 USA
[19] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA
[20] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA
[21] CALTECH, Pasadena, CA 91125 USA
[22] Univ Cincinnati, Cincinnati, OH 45221 USA
[23] Univ Colorado, Boulder, CO 80309 USA
[24] Colorado State Univ, Ft Collins, CO 80523 USA
[25] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany
[26] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany
[27] Ecole Polytech, LLR, F-91128 Palaiseau, France
[28] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland
[29] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy
[30] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy
[31] Ist Nazl Fis Nucl, Nazl Frascati Lab, I-00044 Frascati, Italy
[32] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[33] Ist Nazl Fis Nucl, I-16146 Genoa, Italy
[34] Harvard Univ, Cambridge, MA 02138 USA
[35] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany
[36] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England
[37] Univ Iowa, Iowa City, IA 52242 USA
[38] Iowa State Univ, Ames, IA 50011 USA
[39] Lab Accelerateur Lineaire, F-91898 Orsay, France
[40] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[41] Univ Liverpool, Liverpool L69 72E, Merseyside, England
[42] Univ London, London E1 4NS, England
[43] Univ London, Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England
[44] Univ Louisville, Louisville, KY 40292 USA
[45] Univ Manchester, Manchester M13 9PL, Lancs, England
[46] Univ Maryland, College Pk, MD 20742 USA
[47] Univ Massachusetts, Amherst, MA 01003 USA
[48] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA
[49] McGill Univ, Montreal, PQ H3A 2T8, Canada
[50] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
关键词
D O I
10.1103/PhysRevLett.95.041802
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A search for the nonconservation of lepton flavor number in the decay tau(+/-)->mu(+/-)gamma has been performed using 2.07 x 10(8) e(+)e(-)->tau(+)tau(-) events produced at a center-of-mass energy near 10.58 GeV with the BABAR detector at the PEP-II storage ring. We find no evidence for a signal and set an upper limit on the branching ratio of B(tau(+/-)->mu(+/-)gamma) < 6.8 x 10(-8) at 90% confidence level.
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页数:7
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