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Measurements of the τ mass and the mass difference of the τ^{+} and τ^{-} at BABAR

Aubert, B. et al. (2009) Measurements of the τ mass and the mass difference of the τ^{+} and τ^{-} at BABAR. Physical Review D, 80 (9). 092005. ISSN 1550-7998

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Abstract

We present the result from a precision measurement of the mass of the τ lepton, Mτ, based on 423 fb-1 of data recorded at the Υ(4S) resonance with the BABAR detector. Using a pseudomass endpoint method, we determine the mass to be 1776.68±0.12(stat)±0.41(syst) MeV. We also measure the mass difference between the τ+ and τ-, and obtain (Mτ+-Mτ-)/MAVGτ=(-3.4±1.3(stat)±0.3(syst))×10-4, where MAVGτ is the average value of Mτ+ and Mτ-.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 15 Dec 2011 13:25
Last Modified: 15 Dec 2011 13:25
URI: http://eprints.hud.ac.uk/id/eprint/12200

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