Measurement of the τ lepton mass and an upper limit on the mass difference between τ+ and τ-

被引：24

作者：

Belous, K. ^{[1
]}

Shapkin, M.

Sokolov, A.

Abe, K.

Adachi, I.

Aihara, H.

Anipko, D.

Arinstein, K.

Aulchenko, V.

Aushev, T.

Bakich, A. M.

Barberio, E.

Bay, A.

Bedny, I.

Bitenc, U.

Bizjak, I.

Blyth, S.

Bondar, A.

Bozek, A.

Bracko, M.

Browder, T. E.

Chang, M.-C.

Chen, A.

Chen, K.-F.

Chen, W. T.

Cheon, B. G.

Chistov, R.

Choi, Y.

Choi, Y. K.

Cole, S.

Dalseno, J.

Drutskoy, A.

Eidelman, S.

Epifanov, D.

Fratina, S.

Fujikawa, M.

Gabyshev, N.

Gershon, T.

Gokhroo, G.

Golob, B.

Ha, H.

Haba, J.

Hasegawa, Y.

Hayasaka, K.

Hayashii, H.

Hazumi, M.

Heffernan, D.

Hokuue, T.

Hoshi, Y.

机构：

[1] Inst High Energy Phys, Protvino, Russia

[2] Inst High Energy Phys, Vienna, Austria

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[4] Univ Illinois, Urbana, IL 61801 USA

[5] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan

[6] Univ Hawaii, Honolulu, HI 96822 USA

[7] Hanyang Univ, Seoul 133791, South Korea

[8] Grad Univ Adv Studies, Hayama, Japan

[9] Fu Jen Catholic Univ, Dept Phys, Taipei, Taiwan

[10] Univ Cincinnati, Cincinnati, OH 45221 USA

[11] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[12] Inst Theoret & Expt Phys, Moscow 117259, Russia

[13] Jozef Stefan Inst, Ljubljana, Slovenia

[14] Kanagawa Univ, Yokohama, Kanagawa, Japan

[15] Korea Univ, Seoul 136701, South Korea

[16] Kyungpook Natl Univ, Taegu 702701, South Korea

[17] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland

[18] Univ Ljubljana, Ljubljana, Slovenia

[19] Univ Maribor, SLO-2000 Maribor, Slovenia

[20] Univ Melbourne, Parkville, Vic 3052, Australia

[21] Nagoya Univ, Nagoya, Aichi, Japan

[22] Nara Womens Univ, Nara 630, Japan

[23] Natl Cent Univ, Chungli 32054, Taiwan

[24] Natl United Univ, Miaoli, Taiwan

[25] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan

[26] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[27] Nippon Dent Univ, Niigata, Japan

[28] Niigata Univ, Niigata, Japan

[29] Univ Nova Gorica, Nova Gorica, Slovenia

[30] Osaka City Univ, Osaka 558, Japan

[31] Osaka Univ, Osaka, Japan

[32] Panjab Univ, Chandigarh 160014, India

[33] Peking Univ, Beijing 100871, Peoples R China

[34] RIKEN BNL Res Ctr, Upton, NY 11973 USA

[35] Univ Sci & Technol China, Hefei 230026, Peoples R China

[36] Seoul Natl Univ, Seoul, South Korea

[37] Shinshu Univ, Nagano, Japan

[38] Sungkyunkwan Univ, Suwon, South Korea

[39] Univ Sydney, Sydney, NSW 2006, Australia

[40] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[41] Toho Univ, Funabashi, Chiba 274, Japan

[42] Tohoku Gakuin Univ, Tagajo, Miyagi, Japan

[43] Tohoku Univ, Sendai, Miyagi 980, Japan

[44] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[45] Tokyo Inst Technol, Tokyo 152, Japan

[46] Tokyo Metropolitan Univ, Tokyo 158, Japan

[47] Tokyo Univ Agr & Technol, Tokyo, Japan

[48] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[49] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.99.011801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The mass of the tau lepton has been measured in the decay mode tau -> 3 pi nu(tau) using a pseudomass technique. The result obtained from 414 fb(-1) of data collected with the Belle detector is M-tau=[1776.61 +/- 0.13(stat)+/- 0.35(sys)] MeV/c(2). The upper limit on the relative mass difference between positive and negative tau leptons is |M-tau(+)-M-tau(-)|/M-tau < 2.8x10(-4) at 90% confidence level.

引用

页数：6

共 12 条

[1] Muon identification in the Belle experiment at KEKB [J].

Abashian, A ;

Abe, K ;

Behara, PK ;

Handa, F ;

Iijima, T ;

Inoue, Y ;

Miyake, H ;

Nagamine, T ;

Nakano, E ;

Narita, S ;

Piilonen, L ;

Schrenk, S ;

Teramoto, Y ;

Trabelsi, K ;

Wang, JG ;

Yamaga, M ;

Yamaguchi, A ;

Yusa, Y .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 491 (1-2) :69-82

[2] The Belle detector [J].

Abashian, A ;

Abe, K ;

Abe, R ;

Abe, K ;

Adachi, I ;

Ahn, BS ;

Ahn, HS ;

Aihara, H ;

Akatsu, M ;

Akhmetshin, R ;

Alexander, JP ;

Alimonti, G ;

An, Q ;

Aoki, K ;

Asai, M ;

Asano, Y ;

Aso, T ;

Aulchenko, V ;

Bakich, AM ;

Banas, E ;

Behari, S ;

Behera, PK ;

Beiline, D ;

Bondar, A ;

Bozek, A ;

Browder, TE ;

Casey, BCK ;

Chang, P ;

Chang, YH ;

Chao, Y ;

Chen, HS ;

Chen, HF ;

Chen, YQ ;

Cheon, BG ;

Chidzik, S ;

Choi, S ;

Choi, Y ;

Dneprovsky, L ;

Doi, Y ;

Dong, LY ;

Dragic, J ;

Drutskoy, A ;

Eidelman, S ;

Enomoto, R ;

Everton, CW ;

Fang, F ;

Fujii, H ;

Fujimoto, K ;

Fujita, Y ;

Fukunaga, C .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 479 (01) :117-232

[3] A measurement of the τ mass and the first CPT test with τ leptons [J].

Abbiendi, G ;

Ackerstaff, K ;

Ainsley, C ;

Akesson, PF ;

Alexander, G ;

Allison, J ;

Anderson, KJ ;

Arcelli, S ;

Asai, S ;

Ashby, SF ;

Axen, D ;

Azuelos, G ;

Bailey, I ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Batley, JR ;

Baumann, S ;

Behnke, T ;

Bell, KW ;

Bella, C ;

Bellerive, A ;

Bentvelsen, S ;

Bethke, S ;

Biebel, O ;

Bloodworth, IJ ;

Bock, P ;

Böhme, J ;

Boeriu, O ;

Bonacorsi, D ;

Boutemeur, M ;

Braibant, S ;

Bright-Thomas, P ;

Brigliadori, L ;

Brown, RM ;

Burckharth, HJ ;

Cammin, J ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Ciocca, C ;

Clarke, PEL ;

Clay, E ;

Cohen, I ;

Cooke, OC ;

Couchman, J ;

Couyoumtzelis, C .

PHYSICS LETTERS B, 2000, 492 (1-2) :23-31

[4] A MEASUREMENT OF THE TAU MASS [J].

ALBRECHT, H ;

EHRLICHMANN, H ;

HAMACHER, T ;

HOFMANN, RP ;

KIRCHHOFF, T ;

NAU, A ;

NOWAK, S ;

SCHRODER, H ;

SCHULZ, HD ;

WALTER, M ;

WURTH, R ;

APPUHN, RD ;

HAST, C ;

KOLANOSKI, H ;

LANGE, A ;

LINDNER, A ;

MANKEL, R ;

SCHIEBER, M ;

SIEGMUND, T ;

SPAAN, B ;

THURN, H ;

TOPFER, D ;

WALTHER, A ;

WEGENER, D ;

PAULINI, M ;

REIM, K ;

WEGENER, H ;

MUNDT, R ;

OEST, T ;

REINER, R ;

SCHMIDTPARZEFALL, W ;

FUNK, W ;

STIEWE, J ;

WERNER, S ;

EHRET, K ;

HOFMANN, W ;

HUPPER, A ;

KHAN, S ;

KNOPFLE, KT ;

SPENGLER, J ;

BRITTON, DI ;

CHARLESWORTH, CEK ;

EDWARDS, KW ;

HYATT, ERF ;

KAPITZA, H ;

KRIEGER, P ;

MACFARLANE, DB ;

PATEL, PM ;

PRENTICE, JD ;

SAULL, PRB .

PHYSICS LETTERS B, 1992, 292 (1-2) :221-228

[5]

[Смалюк В.В. Anashin V.V.], 2007, [Письма в Журнал экспериментальной и теоретической физики, Pis'ma v Zhurnal eksperimental'noi i teoreticheskoi fiziki], V85, P429

[6] Measurement of the negative muon spectrum between 0.3 and 40 GeV/c in the atmosphere [J].

Bellotti, R ;

Cafagna, F ;

Circella, M ;

DeCataldo, G ;

DeMarzo, CN ;

Giglietto, N ;

Spinelli, P ;

Golden, RL ;

Stephens, SA ;

Stochaj, SJ ;

Webber, WR ;

DePascale, MP ;

Morselli, A ;

Picozza, P ;

Ormes, JF ;

Streitmatter, RE ;

Brancaccio, FM ;

Papini, P ;

Piccardi, P ;

Spillantini, P ;

Basini, G ;

Bongiorno, F ;

Ricci, M ;

Brunetti, MT ;

Codino, A ;

Grimani, C ;

Menichelli, M ;

Salvatori, I .

PHYSICAL REVIEW D, 1996, 53 (01) :35-43

[7] Unified approach to the classical statistical analysis of small signals [J].

Feldman, GJ ;

Cousins, RD .

PHYSICAL REVIEW D, 1998, 57 (07) :3873-3889

[8] Electron identification in Belle [J].

Hanagaki, K ;

Kakuno, H ;

Ikeda, H ;

Iijima, T ;

Tsukamoto, T .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 485 (03) :490-503

[9] The precision Monte Carlo event generator KK for two-fermion final states in e+e- collisions [J].

Jadach, S ;

Ward, BFL ;

Was, Z .

COMPUTER PHYSICS COMMUNICATIONS, 2000, 130 (03) :260-325

[10] KORALB - AN UPGRADE TO VERSION-2.4 [J].

JADACH, S ;

WAS, Z .

COMPUTER PHYSICS COMMUNICATIONS, 1995, 85 (03) :453-462

← 1 2 →