Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR
Author(s)
Fisher, Peter H.; Dujmic, Denis; Cowan, Ray Franklin; Henderson, Shawn Wesley; Sciolla, Gabriella; Spitznagel, M.; Yamamoto, R. K.; Zhao, M.; ... Show more Show less
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Alternative title
Measurements of the τ mass and the mass difference of the τ+ and τ- at BABAR
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Show full item recordAbstract
We present the result from a precision measurement of the mass of the tau lepton, Mτ, based on 423 fb[subscript -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 tau+ and tau-, and obtain (Mtau+-Mtau-)/MAVGtau=(-3.4±1.3(stat)±0.3(syst))×10-4, where MAVGtau is the average value of Mtau+ and Mtau-.
Date issued
2009-11Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. Department of PhysicsJournal
Physical Review D
Publisher
American Physical Society
Citation
Aubert, B. et al. “Measurements of the tau mass and the mass difference of the tau^{+} and tau^{-} at BABAR.” Physical Review D 80.9 (2009): 092005. © 2009 The American Physical Society.
Version: Final published version
ISSN
1089-4918