MEASUREMENT OF THE MASS OF THE TAU-LEPTON

被引：92

作者：

BAI, JZ

BARDON, O

BECKERSZENDY, RA

BURNETT, TH

CAMPBELL, JS

CHEN, SJ

CHEN, SM

CHEN, YQ

CHENG, ZD

COLLER, JA

COWAN, RF

CUI, HC

CUI, XZ

DING, HL

DU, ZZ

DUNWOODIE, W

FANG, C

FERO, MJ

GAO, ML

GAO, SQ

GAO, WX

GAO, YN

GU, JH

GU, SD

GU, WX

GUO, YN

GUO, YY

HAN, Y

HATANAKA, M

HE, J

HITLIN, DG

HU, GY

HU, T

HUANG, DQ

HUANG, YZ

IZEN, JM

JIA, QP

JIANG, CH

JIANG, ZJ

JOHNSON, AS

JONES, LA

KELSEY, MH

LAI, YF

LANG, PF

LANKFORD, A

LI, F

LI, J

LI, PQ

LI, QM

LI, RB

机构：

[1] BOSTON UNIV,BOSTON,MA 02215

[2] CALTECH,PASADENA,CA 91125

[3] UNIV CALIF IRVINE,IRVINE,CA 92717

[4] COLORADO STATE UNIV,FT COLLINS,CO 80523

[5] MIT,CAMBRIDGE,MA 02139

[6] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309

[7] SUPERCONDUCTING SUPER COLLIDER LAB,DALLAS,TX 75237

[8] UNIV TEXAS,RICHARDSON,TX 75083

[9] UNIV WASHINGTON,SEATTLE,WA 98195

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.69.3021

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 at the Beijing Electron-Positron Collider using the Beijing Spectrometer. A search near threshold for e+ e- --> tau+ tau- was performed. Candidate events were identified by requiring that one tau decay via tau --> enunuBAR, and the other via tau --> mununuBAR. The mass value, obtained from a fit to the energy dependence of the tau+ tau- cross section, is m(tau) = 1776.9(-0.5)+0.4 +/- 0.2 MeV.

引用

页码：3021 / 3024

页数：4

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