Title

Measurements of cross sections and charge asymmetries for e+e-→τ+τ-and e+e-→μ+μ-for s from 52 to 57 GeV

Authors

A. Bacala, Louisiana State University
R. L. Malchow, University of California, Davis
K. Sparks, University of California, Davis
R. Imlay, Louisiana State University
P. Kirk, Louisiana State University
R. R. McNeil, Louisiana State University
W. Metcalf, Louisiana State University
Winston Ko, University of California, Davis
R. L. Lander, University of California, Davis
K. Maeshima, University of California, Davis
J. R. Smith, University of California, Davis
M. C.S. Williams, University of California, Davis
C. P. Cheng, Institute of High Energy Physics Chinese Academy of Science
J. Li, Institute of High Energy Physics Chinese Academy of Science
Y. K. Li, Institute of High Energy Physics Chinese Academy of Science
Z. P. Mao, Institute of High Energy Physics Chinese Academy of Science
Y. Yan, Institute of High Energy Physics Chinese Academy of Science
Y. T. Xu, Institute of High Energy Physics Chinese Academy of Science
Y. C. Zhu, Institute of High Energy Physics Chinese Academy of Science
A. Abashian, Virginia Polytechnic Institute and State University
K. Gotow, Virginia Polytechnic Institute and State University
F. Kajino, Virginia Polytechnic Institute and State University
E. Low, Virginia Polytechnic Institute and State University
F. Naito, Virginia Polytechnic Institute and State University
L. Piilonen, Virginia Polytechnic Institute and State University
R. Childers, University of South Carolina
C. Darden, University of South Carolina
S. Lusin, University of South Carolina
C. Rosenfeld, University of South Carolina
A. Wang, University of South Carolina
S. Wilson, University of South Carolina
M. Frautschi, The Ohio State University
H. Kagan, The Ohio State University

Document Type

Article

Publication Date

2-9-1989

Abstract

Measurements of the differential cross sections for e+e-→μ+μ- and e+e-→τ+τ- at values of s from 52 to 57 GeV are reported. The forward-backward asymmetries and the total cross sections for these reactions are found to be in agreement with predictions of the standard model of the electro-weak interactions. These measurements are used to extract values of the weak coupling constant gvegvl and gAegAl, where l = μ or τ. © 1989.

Publication Source (Journal or Book title)

Physics Letters B

First Page

112

Last Page

118

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