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Title: Search for the decay B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}}

Abstract

We search for the rare leptonic decay B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}} in a sample of 232x10{sup 6} BB pairs collected with the BABAR detector at the SLAC PEP-II B-Factory. Signal events are selected by examining the properties of the B meson recoiling against the semileptonic decay B{sup -}{yields}D*{sup 0}l{sup -}{nu}{sub l}. We find no evidence for a signal and set an upper limit on the branching fraction of B(B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}})<2.8x10{sup -4} at the 90% confidence level. We combine this result with a previous, statistically independent BABAR search for B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}} to give an upper limit of B(B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}})<2.6x10{sup -4} at the 90% confidence level.

Authors:
; ; ; ; ; ; ; ;  [1];  [2]; ; ;  [3]; ; ; ; ;  [4]; ;  [5]
  1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
  2. IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
  3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
  4. Institute of High Energy Physics, Beijing 100039 (China)
  5. University of Bergen, Institute of Physics, N-5007 Bergen (Norway) (and others)
Publication Date:
OSTI Identifier:
20776908
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.73.057101; (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; B PLUS MESONS; BRANCHING RATIO; D*-2010 MESONS; LEPTONIC DECAY; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PEP STORAGE RINGS; SEMILEPTONIC DECAY; TAU NEUTRINOS

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 the decay B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}}. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.73.057101.
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 the decay B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}}. United States. doi:10.1103/PhysRevD.73.057101.
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.. Wed . "Search for the decay B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}}". United States. doi:10.1103/PhysRevD.73.057101.
@article{osti_20776908,
title = {Search for the decay B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}}},
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 = {We search for the rare leptonic decay B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}} in a sample of 232x10{sup 6} BB pairs collected with the BABAR detector at the SLAC PEP-II B-Factory. Signal events are selected by examining the properties of the B meson recoiling against the semileptonic decay B{sup -}{yields}D*{sup 0}l{sup -}{nu}{sub l}. We find no evidence for a signal and set an upper limit on the branching fraction of B(B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}})<2.8x10{sup -4} at the 90% confidence level. We combine this result with a previous, statistically independent BABAR search for B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}} to give an upper limit of B(B{sup +}{yields}{tau}{sup +}{nu}{sub {tau}})<2.6x10{sup -4} at the 90% confidence level.},
doi = {10.1103/PhysRevD.73.057101},
journal = {Physical Review. D, Particles Fields},
number = 5,
volume = 73,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2006},
month = {Wed Mar 01 00:00:00 EST 2006}
}