Search for baryon and lepton number violating decays of the {tau} lepton
Journal Article
·
· Physical Review, D
OSTI ID:336711
We have searched for five decay modes of the {tau} lepton that simultaneously violate lepton and baryon number: {tau}{sup {minus}}{r_arrow}{bar p}{gamma}, {tau}{sup {minus}}{r_arrow}{bar p}{pi}{sup 0}, {tau}{sup {minus}}{r_arrow}{bar p}{eta}, {tau}{sup {minus}}{r_arrow}{bar p}2{pi}{sup 0}, and {tau}{sup {minus}}{r_arrow}{bar p}{pi}{sup 0}{eta}. 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{sup {minus}1}, corresponding to the production of 4.3{times}10{sup 6} {tau}{sup +}{tau}{sup {minus}} 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. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 336711
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 59; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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