Title

Experimental mass limit for a fourth-generation sequential lepton from e+e- annihilations at s=56 GeV

Authors

G. N. Kim, Kyungpook National University
E. J. Kim, Kyungpook National University
D. Son, Kyungpook National University
A. Bacala, Louisiana State University
R. Imlay, Louisiana State University
P. Kirk, Louisiana State University
R. R. McNeil, Louisiana State University
W. Metcalf, Louisiana State University
C. P. Cheng, 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
S. Wilson, University of South Carolina
M. Frautschi, The Ohio State University
H. Kagan, The Ohio State University
R. Kass, The Ohio State University
C. G. Trahern, The Ohio State University
Winston Ko, University of California, Davis
R. L. Lander, University of California, Davis
K. Maeshima, University of California, Davis
R. L. Malchow, University of California, Davis
J. R. Smith, University of California, Davis

Document Type

Article

Publication Date

1-1-1988

Abstract

A search for pair production of fourth-generation sequential leptons in e+e- annihilation at a center-of-mass energy s=56 GeV is reported. Event topologies corresponding to the cases where one particle decays leptonically while the other decays hadronically as well as those where both particles decay hadronically were explored. We set a 95%-confidence-level lower limit of 27.6 GeV/c2 for the mass of a fourth-generation lepton. © 1988 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review Letters

First Page

911

Last Page

914

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