Search for Lepton Flavor Violating Decays {tau}{sup -}{yields}l{sup -}K{sub s}{sup 0} with the BABAR Experiment

Journal Article · Thu Jan 01 00:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.012004· OSTI ID:21254669

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Tico, J Garra; Grauges, E ^[2]; Lopez, L; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Cahn, R N ^[5]

---

1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. INFN Sezione di Bari, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

A search for the lepton flavor violating decays {tau}{sup -}{yields}l{sup -}K{sub S}{sup 0} (l=e or {mu}) has been performed using a data sample corresponding to an integrated luminosity of 469 fb{sup -1}, collected with the BABAR detector at the SLAC PEP-II e{sup +}e{sup -} asymmetric energy collider. No statistically significant signal has been observed in either channel and the estimated upper limits on branching fractions are B({tau}{sup -}{yields}e{sup -}K{sub S}{sup 0})<3.3x10{sup -8} and B({tau}{sup -}{yields}{mu}{sup -}K{sub S}{sup 0})<4.0x10{sup -8} at 90% confidence level.

• OSTI ID: 21254669
• Journal Information: Physical Review. D, Particles Fields, Vol. 79, Issue 1; Other Information: DOI: 10.1103/PhysRevD.79.012004; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BRANCHING RATIO
ELECTRONS
FLAVOR MODEL
KAONS
LUMINOSITY
MUONS
PARTICLE DECAY
POSITRONS
STANFORD LINEAR ACCELERATOR CENTER
TAU PARTICLES