UPPER LIMITS ON THE BRANCHING RATIOS TAU-]MU-GAMMA AND TAU-]E-GAMMA

被引：13

作者：

ABREU, P

ADAM, W

ADYE, T

AGASI, E

AJINENKO, I

ALEKSAN, R

ALEKSEEV, GD

ALLPORT, PP

ALMEHED, S

ALVSVAAG, SJ

AMALDI, U

AMATO, S

ANDREAZZA, A

ANDRIEUX, ML

ANTILOGUS, P

APEL, WD

ARNOUD, Y

ASMAN, B

AUGUSTIN, JE

AUGUSTINUS, A

BAILLON, P

BAMBADE, P

BARAO, F

BARATE, R

BARBIELLINI, G

BARDIN, DY

BARKER, GJ

BARONCELLI, A

BARRING, O

BARRIO, JA

BARTL, W

BATES, MJ

BATTAGLIA, M

BAUBILLIER, M

BAUDOT, J

BECKS, KH

BEGALLI, M

BEILLIERE, P

BELOKOPYTOV, Y

BENVENUTI, AC

BERGGREN, M

BERTRAND, D

BIANCHI, F

BIGI, M

BILENKY, MS

BILLOIR, P

BLOCH, D

BLUME, M

BLYTH, S

BOCCI, V

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011

[2] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011

[3] UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 WILRIJK,BELGIUM

[4] ULB VUB,IIHE,B-1050 BRUSSELS,BELGIUM

[5] UNIV ETAT MONS,FAC SCI,B-7000 MONS,BELGIUM

[6] UNIV ATHENS,PHYS LAB,GR-10680 ATHENS,GREECE

[7] UNIV BERGEN,DEPT PHYS,N-5007 BERGEN,NORWAY

[8] UNIV BOLOGNA,DIPARTIMENTO FIS,I-40126 BOLOGNA,ITALY

[9] IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY

[10] CTR BRASILEIRO PESQUISAS FIS,BR-22290 RIO JANEIRO,BRAZIL

[11] PONTIFICIA UNIV CATOLICA RIO DE JANEIRO,DEPT FIS,BR-22453 RIO JANEIRO,BRAZIL

[12] UNIV ESTADUAL RIO DE JANEIRO,INST FIS,RIO JANEIRO,BRAZIL

[13] COMENIUS UNIV BRATISLAVA,DEPT MATH & PHYS,BRATISLAVA 84215,SLOVAKIA

[14] COLL FRANCE,PHYS CORPUSCULAIRE LAB,IN2P3,CNRS,F-75231 PARIS 05,FRANCE

[15] CERN,CH-1211 GENEVA 23,SWITZERLAND

[16] UNIV STRASBOURG 1,CTR RECH NUCL,CNRS,IN2P3,F-67037 STRASBOURG,FRANCE

[17] DEMOKRITOS NATL CTR SCI RES,INST NUCL PHYS,GR-15310 ATHENS,GREECE

[18] ACAD SCI CZECH REPUBL,INST PHYS,DIV HIGH ENERGY PHYS,FZU,CR-18040 PRAGUE 8,CZECH REPUBLIC

[19] UNIV GENOA,DIPARTIMENTO FIS,I-16146 GENOA,ITALY

[20] IST NAZL FIS NUCL,I-16146 GENOA,ITALY

[21] UNIV GRENOBLE 1,INST NUCL SCI,IN2P3,CNRS,F-38026 GRENOBLE,FRANCE

[22] SEFT,HIGH ENERGY PHYS RES INST,SF-00014 HELSINKI,FINLAND

[23] JOINT INST NUCL RES DUBNA,MOSCOW 101000,RUSSIA

[24] UNIV KARLSRUHE,INST EXPTL KERNPHYS,D-76128 KARLSRUHE,GERMANY

[25] INST NUCL PHYS,HIGH ENERGY PHYS LAB,PL-30055 KRAKOW 30,POLAND

[26] UNIV PARIS 11,ACCELERATEUR LINEAIRE LAB,IN2P3,CNRS,F-91405 ORSAY,FRANCE

[27] UNIV LANCASTER,SCH PHYS & MAT,LANCASTER LA1 4YB,ENGLAND

[28] UNIV LIVERPOOL,DEPT PHYS,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND

[29] UNIV PARIS 06,LPNHE,IN2P3,CNRS,F-75252 PARIS 05,FRANCE

[30] UNIV PARIS 07,F-75252 PARIS 05,FRANCE

[31] LUND UNIV,DEPT PHYS,S-22363 LUND,SWEDEN

[32] UNIV LYON 1,IPNL,IN2P3,CNRS,F-69622 VILLEURBANNE,FRANCE

[33] UNIV COMPLUTENSE MADRID,E-28040 MADRID,SPAIN

[34] UNIV AIX MARSEILLE 2,CPP,CNRS,IN2P3,F-13288 MARSEILLE 09,FRANCE

[35] UNIV MILAN,DIPARTIMENTO FIS,I-20133 MILAN,ITALY

[36] IST NAZL FIS NUCL,I-20133 MILAN,ITALY

[37] NIELS BOHR INST,DK-2100 COPENHAGEN 0,DENMARK

[38] CHARLES UNIV,MFF,CTR NUCL,NC,CR-18000 PRAGUE 8,CZECH REPUBLIC

[39] NIKHEF H,1009 DB AMSTERDAM,NETHERLANDS

[40] NATL TECH UNIV ATHENS,DEPT PHYS,GR-15773 ATHENS,GREECE

[41] UNIV OSLO,DEPT PHYS,N-1000 OSLO 3,NORWAY

[42] UNIV OVIEDO,DEPT FIS,E-33006 OVIEDO,SPAIN

[43] UNIV OXFORD,DEPT PHYS,OXFORD OX1 3RH,ENGLAND

[44] UNIV PADUA,DIPARTIMENTO FIS,I-35131 PADUA,ITALY

[45] IST NAZL FIS NUCL,I-35131 PADUA,ITALY

[46] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

[47] UNIV ROMA TOR VERGATA,DIPARTIMENTO FIS,I-00173 ROME,ITALY

[48] IST NAZL FIS NUCL,I-00173 ROME,ITALY

[49] CTR ETUD SACLAY,DSM,DAPNIA,F-91191 GIF SUR YVETTE,FRANCE

[50] IST NAZL FIS NUCL,IST SUPER SANITA,I-00161 ROME,ITALY

来源：

PHYSICS LETTERS B | 1995年 / 359卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(95)01045-R

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The DELPHI collaboration has searched for lepton flavour violating decays tau --> mu gamma and tau --> e gamma using a data sample of about 70 pb(-1) of integrated luminosity corresponding to 81 000 produced tau(+)tau(-) events. No candidates were found for either of the two modes. This yields branching ratio upper limits of B(tau --> e gamma) < 1.1 x 10(-4) and B(tau --> mu gamma) < 6.2 x 10(-5) at 90% confidence level.

引用

页码：411 / 421

页数：11

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