Search for Lepton Flavour Violating Decays tau- to l- Ks with the BaBar experiment

Journal Article · Tue Jan 06 00:00:00 EST 2009 · Phys.Rev.D79:012004,2009

DOI:https://doi.org/10.1103/PhysRevD.79.012004· OSTI ID:945289

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

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 {Beta}({tau}{sup -} {yields} e{sup -} K{sub S}{sup 0}) < 3.3 x 10{sup -8} and {Beta}({tau}{sup -} {yields} {mu}{sup -}K{sub S}{sup 0}) < 4.0 x 10{sup -8} at 90% confidence level.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 945289
• Report Number(s): SLAC-PUB-13487; arXiv:0812.3804; TRN: US0900786
• Journal Information: Phys.Rev.D79:012004,2009, Journal Name: Phys.Rev.D79:012004,2009
• Country of Publication: United States
• Language: English

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