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Title: Search for the Rare Decay B0→τ+τ− at BABAR
Author: Graugés Pous, Eugeni
BABAR Collaboration
Keywords: Física de partícules
Particle physics
Issue Date: 23-Jun-2006
Publisher: American Physical Society
Abstract: We present the results of a search for the decay B 0 → τ + τ − in a data sample of ( 232 ± 3 ) × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays using the BABAR detector. Certain extensions of the standard model predict measurable levels of this otherwise rare decay. We reconstruct fully one neutral B meson and seek evidence for the signal decay in the rest of the event. We find no evidence for signal events and obtain B ( B 0 → τ + τ − ) < 4.1 × 10 − 3 at the 90% confidence level.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2006, vol. 96, num. 24, p. 241802
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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