Measurement of the lifetime of the tau lepton

被引：6

作者：

Acciarri, M ^{[1
]}

Adriani, O

AguilarBenitez, M

Ahlen, S

Alpat, B

Alcaraz, J

Alemanni, G

Allaby, J

Aloisio, A

Alverson, G

Alviggi, MG

Ambrosi, G

Anderhub, H

Andreev, VP

Angelescu, T

Anselmo, F

Antreasyan, D

Arefiev, A

Azemoon, T

Aziz, T

Bagnaia, P

Baksay, L

Ball, RC

Banerjee, S

Banicz, K

Barillere, R

Barone, L

Bartalini, P

Baschirotto, A

Basile, M

Battiston, R

Bay, A

Becattini, F

Becker, U

Behner, F

Berdugo, J

Berges, P

Betev, BL

Bhattacharya, S

Biasini, M

Biland, A

Bilei, GM

Blaising, JJ

Blyth, SC

Bobbink, GJ

Bock, R

Bohm, A

Borgia, B

Boucham, A

Bourilkov, D

机构：

[1] RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-52056 AACHEN, GERMANY

[2] NIKHEF H, NATL INST HIGH ENERGY PHYS, NL-1009 DB AMSTERDAM, NETHERLANDS

[3] UNIV AMSTERDAM, NL-1009 DB AMSTERDAM, NETHERLANDS

[4] UNIV MICHIGAN, ANN ARBOR, MI 48109 USA

[5] LAB ANNECY LE VIEUX PHYS PARTICULES, IN2P3 CNRS, F-74941 ANNECY LE VIEUX, FRANCE

[6] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA

[7] UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND

[8] INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA

[9] HUMBOLDT UNIV BERLIN, D-10099 BERLIN, GERMANY

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

[11] TATA INST FUNDAMENTAL RES, BOMBAY 400005, MAHARASHTRA, INDIA

[12] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

[13] BOSTON UNIV, BOSTON, MA 02215 USA

[14] INST ATOM PHYS, R-76900 BUCHAREST, ROMANIA

[15] UNIV BUCHAREST, R-76900 BUCHAREST, ROMANIA

[16] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST 114, HUNGARY

[17] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

[18] MIT, CAMBRIDGE, MA 02139 USA

[19] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY

[20] UNIV FLORENCE, I-50125 FLORENCE, ITALY

[21] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND

[22] FBLJA PROJECT, WORLD LAB, CH-1211 GENEVA 23, SWITZERLAND

[23] UNIV GENEVA, CH-1211 GENEVA 4, SWITZERLAND

[24] USTC, HEFEI 230029, PEOPLES R CHINA

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

[26] UNIV LAUSANNE, CH-1015 LAUSANNE, SWITZERLAND

[27] IST NAZL FIS NUCL, I-73100 LECCE, ITALY

[28] UNIV LECCE, I-73100 LECCE, ITALY

[29] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87544 USA

[30] UNIV LYON 1, IN2P3 CNRS, INST NUCL PHYS, F-69622 VILLEURBANNE, FRANCE

[31] CIEMAT, E-28040 MADRID, SPAIN

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

[33] INST THEORET & EXPT PHYS, MOSCOW, RUSSIA

[34] IST NAZL FIS NUCL, I-80125 NAPLES, ITALY

[35] UNIV NAPLES, I-80125 NAPLES, ITALY

[36] UNIV CYPRUS, DEPT NAT SCI, NICOSIA, CYPRUS

[37] CATHOLIC UNIV NIJMEGEN, NL-6525 ED NIJMEGEN, NETHERLANDS

[38] NATL INST NUCL PHYS & HIGH ENERGY PHYS, NL-6525 ED NIJMEGEN, NETHERLANDS

[39] OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA

[40] CALTECH, PASADENA, CA 91125 USA

[41] IST NAZL FIS NUCL, I-06100 PERUGIA, ITALY

[42] UNIV PERUGIA, I-06100 PERUGIA, ITALY

[43] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15213 USA

[44] PRINCETON UNIV, PRINCETON, NJ 08544 USA

[45] IST NAZL FIS NUCL, I-00185 ROME, ITALY

[46] UNIV ROMA LA SAPIENZA, I-00185 ROME, ITALY

[47] INST PHYS NUCL, ST PETERSBURG, RUSSIA

[48] UNIV SALERNO, I-84100 SALERNO, ITALY

[49] IST NAZL FIS NUCL, I-84100 SALERNO, ITALY

[50] UNIV CALIF SAN DIEGO, SAN DIEGO, CA 92093 USA

来源：

PHYSICS LETTERS B | 1996年 / 389卷 / 01期

基金：

匈牙利科学研究基金会;

关键词：

D O I：

10.1016/S0370-2693(96)01392-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The lifetime of the tau lepton is measured using data collected in 1994 by the L3 detector at LEP. The precise track position information of the Silicon Microvertex Detector is exploited. The tau lepton lifetime is determined from the signed impact parameter distribution for 30322 tau decays into one charged particle and from the decay length distribution for 3891 tau decays into three charged particles. Combining the two methods we obtain tau(t)au=290.1+/-4.0 fs.

引用

页码：187 / 196

页数：10

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