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Title: Search for Lepton Flavor Violation in the Decay {tau}{sup {+-}}{yields}e{sup {+-}}{gamma}

Abstract

A search for the nonconservation of lepton flavor in the decay {tau}{sup {+-}}{yields}e{sup {+-}}{gamma} has been performed with 2.07x10{sup 8} e{sup +}e{sup -}{yields}{tau}{sup +}{tau}{sup -} events collected by the BABAR detector at the SLAC PEP II storage ring at a center-of-mass energy near 10.58 GeV. We find no evidence for a signal and set an upper limit on the branching ratio of B({tau}{sup {+-}}{yields}e{sup {+-}}{gamma})<1.1x10{sup -7} at 90% confidence level.

Authors:
; ; ; ; ; ; ; ;  [1];  [2]; ; ;  [3]; ; ; ; ;  [4]; ;  [5]
+ Show Author Affiliations
  1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
  2. IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
  3. Dipartimento di Fisica and INFN, Universita di Bari, I-70126 Bari (Italy)
  4. Institute of High Energy Physics, Beijing 100039 (China)
  5. Institute of Physics, University of Bergen, N-5007 Bergen (Norway) (and others)
Publication Date:
OSTI Identifier:
20777004
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevLett.96.041801; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; BRANCHING RATIO; CONSERVATION LAWS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; FLAVOR MODEL; GEV RANGE 10-100; MASS; PARTICLE DECAY; POSITRONS; SIGNALS; STANFORD LINEAR ACCELERATOR CENTER; TAU PARTICLES; VIOLATIONS

Citation Formats

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Pappagallo, M., Pompili, A., Chen, J.C., Qi, N.D., Rong, G., Wang, P., Zhu, Y.S., Eigen, G., and Ofte, I. Search for Lepton Flavor Violation in the Decay {tau}{sup {+-}}{yields}e{sup {+-}}{gamma}. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.041801.
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Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Pappagallo, M., Pompili, A., Chen, J.C., Qi, N.D., Rong, G., Wang, P., Zhu, Y.S., Eigen, G., & Ofte, I. Search for Lepton Flavor Violation in the Decay {tau}{sup {+-}}{yields}e{sup {+-}}{gamma}. United States. doi:10.1103/PhysRevLett.96.041801.
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Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Pappagallo, M., Pompili, A., Chen, J.C., Qi, N.D., Rong, G., Wang, P., Zhu, Y.S., Eigen, G., and Ofte, I. Fri . "Search for Lepton Flavor Violation in the Decay {tau}{sup {+-}}{yields}e{sup {+-}}{gamma}". United States. doi:10.1103/PhysRevLett.96.041801.
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@article{osti_20777004,
title = {Search for Lepton Flavor Violation in the Decay {tau}{sup {+-}}{yields}e{sup {+-}}{gamma}},
author = {Aubert, B. and Barate, R. and Boutigny, D. and Couderc, F. and Karyotakis, Y. and Lees, J.P. and Poireau, V. and Tisserand, V. and Zghiche, A. and Grauges, E. and Palano, A. and Pappagallo, M. and Pompili, A. and Chen, J.C. and Qi, N.D. and Rong, G. and Wang, P. and Zhu, Y.S. and Eigen, G. and Ofte, I.},
abstractNote = {A search for the nonconservation of lepton flavor in the decay {tau}{sup {+-}}{yields}e{sup {+-}}{gamma} has been performed with 2.07x10{sup 8} e{sup +}e{sup -}{yields}{tau}{sup +}{tau}{sup -} events collected by the BABAR detector at the SLAC PEP II storage ring at a center-of-mass energy near 10.58 GeV. We find no evidence for a signal and set an upper limit on the branching ratio of B({tau}{sup {+-}}{yields}e{sup {+-}}{gamma})<1.1x10{sup -7} at 90% confidence level.},
doi = {10.1103/PhysRevLett.96.041801},
journal = {Physical Review Letters},
number = 4,
volume = 96,
place = {United States},
year = {Fri Feb 03 00:00:00 EST 2006},
month = {Fri Feb 03 00:00:00 EST 2006}
}
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Journal Article:
DOI:  10.1103/PhysRevLett.96.041801
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  • ; ; ; ... - Physical Review Letters
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  • ; ; ; ... - Physical Review Letters
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  • ; ; ; ... - Physical Review Letters
    A search for the non-conservation of lepton flavor in the decay {tau}{sup {+-}} {yields} e{sup {+-}}{gamma} has been performed with 2.07 x 10{sup 8} e{sup +}e{sup -} {yields} {tau}{sup +}{tau}{sup -} events collected by the BABAR detector at the PEP-II storage ring at a center-of-mass energy near 10.58 GeV. They find no evidence for a signal and set an upper limit on the branching ratio of {Beta}({tau}{sup {+-}} {yields} e{sup {+-}}{gamma}) < 1.1 x 10{sup -7} at 90% confidence level.