Search:
Computing and Library Services - delivering an inspiring information environment

Observation of the Semileptonic Decays B→D^{*}τ^{-}ν[over ¯]_{τ} and Evidence for B→Dτ^{-}ν[over ¯]_{τ}

Aubert, B. et al. (2008) Observation of the Semileptonic Decays B→D^{*}τ^{-}ν[over ¯]_{τ} and Evidence for B→Dτ^{-}ν[over ¯]_{τ}. Physical Review Letters, 100 (2). 021801. ISSN 0031-9007

Metadata only available from this repository.

Abstract

We present measurements of the semileptonic decays B-→D0τ-ν̅ τ, B-→D*0τ-ν̅ τ, B̅ 0→D+τ-ν̅ τ, and B̅ 0→D*+τ-ν̅ τ, which are potentially sensitive to non-standard model amplitudes. The data sample comprises 232×106 Υ(4S)→BB̅ decays collected with the BABAR detector. From a combined fit to B- and B̅ 0 channels, we obtain the branching fractions B(B→Dτ-ν̅ τ)=(0.86±0.24±0.11±0.06)% and B(B→D*τ-ν̅ τ)=(1.62±0.31±0.10±0.05)% (normalized for the B̅ 0), where the uncertainties are statistical, systematic, and normalization-mode-related.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 25 Mar 2011 11:40
Last Modified: 25 Mar 2011 11:40
URI: http://eprints.hud.ac.uk/id/eprint/9931

Item control for Repository Staff only:

View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©