Title

Search for baryon and lepton number violating decays of the τ lepton

Authors

R. Godang, Virginia Polytechnic Institute and State University
K. Kinoshita, Virginia Polytechnic Institute and State University
I. C. Lai, Virginia Polytechnic Institute and State University
P. Pomianowski, Virginia Polytechnic Institute and State University
S. Schrenk, Virginia Polytechnic Institute and State University
G. Bonvicini, Wayne State University
D. Cinabro, Wayne State University
R. Greene, Wayne State University
L. P. Perera, Wayne State University
G. J. Zhou, Wayne State University
S. Chan, California Institute of Technology
G. Eigen, California Institute of Technology
E. Lipeles, California Institute of Technology
J. S. Miller, California Institute of Technology
M. Schmidtler, California Institute of Technology
A. Shapiro, California Institute of Technology
W. M. Sun, California Institute of Technology
J. Urheim, California Institute of Technology
A. J. Weinstein, California Institute of Technology
F. Würthwein, California Institute of Technology
D. E. Jaffe, University of California, San Diego
G. Masek, University of California, San Diego
H. P. Paar, University of California, San Diego
E. M. Potter, University of California, San Diego
S. Prell, University of California, San Diego
V. Sharma, University of California, San Diego
D. M. Asner, University of California, Santa Barbara
A. Eppich, University of California, Santa Barbara
J. Gronberg, University of California, Santa Barbara
T. S. Hill, University of California, Santa Barbara
D. J. Lange, University of California, Santa Barbara
R. J. Morrison, University of California, Santa Barbara
H. N. Nelson, University of California, Santa Barbara

Document Type

Article

Publication Date

5-1-1999

Abstract

We have searched for five decay modes of the τ lepton that simultaneously violate lepton and baryon number: τ →p̄γ, τ →p̄π , τ →p̄η, τ →p̄2π , and τ →p̄π η. The data used in the search were collected with the CLEO II detector at the Cornell Electron Storage Ring. The integrated luminosity of the data sample is 4.7 fb , corresponding to the production of 4.3 × 10 τ τ events. No evidence is found for any of the decays, resulting in much improved upper limits on the branching fractions for the two-body decays and first upper limits for the three-body decays. ©1999 The American Physical Society. - - 0 - - 0 - 0 -1 6 + -

Publication Name

Physical Review D - Particles, Fields, Gravitation and Cosmology

Volume Number

59

First Page

1

Last Page

4

Issue Number

9

Article

091303

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