Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR

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 th...

Full description

Bibliographic Details
Main Authors: Fisher, Peter H., Dujmic, Denis, Cowan, Ray Franklin, Henderson, Shawn Wesley, Sciolla, Gabriella, Spitznagel, M., Yamamoto, R. K., Zhao, M.
Other Authors: Massachusetts Institute of Technology. Laboratory for Nuclear Science
Format: Article
Language:en_US
Published: American Physical Society 2010
Online Access:http://hdl.handle.net/1721.1/57589
https://orcid.org/0000-0002-8667-5660
_version_ 1826206153306013696
author Fisher, Peter H.
Dujmic, Denis
Cowan, Ray Franklin
Henderson, Shawn Wesley
Sciolla, Gabriella
Spitznagel, M.
Yamamoto, R. K.
Zhao, M.
author2 Massachusetts Institute of Technology. Laboratory for Nuclear Science
author_facet Massachusetts Institute of Technology. Laboratory for Nuclear Science
Fisher, Peter H.
Dujmic, Denis
Cowan, Ray Franklin
Henderson, Shawn Wesley
Sciolla, Gabriella
Spitznagel, M.
Yamamoto, R. K.
Zhao, M.
author_sort Fisher, Peter H.
collection MIT
description 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-.
first_indexed 2024-09-23T13:24:56Z
format Article
id mit-1721.1/57589
institution Massachusetts Institute of Technology
language en_US
last_indexed 2024-09-23T13:24:56Z
publishDate 2010
publisher American Physical Society
record_format dspace
spelling mit-1721.1/575892024-07-19T20:02:28Z Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR Measurements of the τ mass and the mass difference of the τ+ and τ- at BABAR Fisher, Peter H. Dujmic, Denis Cowan, Ray Franklin Henderson, Shawn Wesley Sciolla, Gabriella Spitznagel, M. Yamamoto, R. K. Zhao, M. Massachusetts Institute of Technology. Laboratory for Nuclear Science Massachusetts Institute of Technology. Department of Physics Fisher, Peter H. Fisher, Peter H. Dujmic, Denis Cowan, Ray Franklin Henderson, Shawn Wesley Sciolla, Gabriella Spitznagel, M. Yamamoto, R. K. Zhao, M. 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-. United States Department of Energy National Science Foundation Natural Sciences and Engineering Research Council of Canada Commissariat à l'Energie Atomique (France) Institut National de Physique Nucleaire et Physique des Particules/CNRS Bundesministerium für Bildung und Forschung, Germany Deutsche Forschungsgemeinschaft Istituto Nazionale di Fisica Nucleare of Italy FOM of the Netherlands Norges forskningsråd Ministry of Education and Science of the Russian Federation Ministerio de Ciencia e Innovación, Spain Science and Technology Facilities Council, United Kingdom 2010-08-27T19:10:08Z 2010-08-27T19:10:08Z 2009-11 2009-09 Article http://purl.org/eprint/type/JournalArticle 1089-4918 http://hdl.handle.net/1721.1/57589 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. https://orcid.org/0000-0002-8667-5660 en_US http://dx.doi.org/10.1103/PhysRevD.80.092005 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS
spellingShingle Fisher, Peter H.
Dujmic, Denis
Cowan, Ray Franklin
Henderson, Shawn Wesley
Sciolla, Gabriella
Spitznagel, M.
Yamamoto, R. K.
Zhao, M.
Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR
title Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR
title_full Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR
title_fullStr Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR
title_full_unstemmed Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR
title_short Measurements of the tau mass and the mass difference of the tau+ and tau- at BABAR
title_sort measurements of the tau mass and the mass difference of the tau and tau at babar
url http://hdl.handle.net/1721.1/57589
https://orcid.org/0000-0002-8667-5660
work_keys_str_mv AT fisherpeterh measurementsofthetaumassandthemassdifferenceofthetauandtauatbabar
AT dujmicdenis measurementsofthetaumassandthemassdifferenceofthetauandtauatbabar
AT cowanrayfranklin measurementsofthetaumassandthemassdifferenceofthetauandtauatbabar
AT hendersonshawnwesley measurementsofthetaumassandthemassdifferenceofthetauandtauatbabar
AT sciollagabriella measurementsofthetaumassandthemassdifferenceofthetauandtauatbabar
AT spitznagelm measurementsofthetaumassandthemassdifferenceofthetauandtauatbabar
AT yamamotork measurementsofthetaumassandthemassdifferenceofthetauandtauatbabar
AT zhaom measurementsofthetaumassandthemassdifferenceofthetauandtauatbabar
AT fisherpeterh measurementsofthetmassandthemassdifferenceofthetandtatbabar
AT dujmicdenis measurementsofthetmassandthemassdifferenceofthetandtatbabar
AT cowanrayfranklin measurementsofthetmassandthemassdifferenceofthetandtatbabar
AT hendersonshawnwesley measurementsofthetmassandthemassdifferenceofthetandtatbabar
AT sciollagabriella measurementsofthetmassandthemassdifferenceofthetandtatbabar
AT spitznagelm measurementsofthetmassandthemassdifferenceofthetandtatbabar
AT yamamotork measurementsofthetmassandthemassdifferenceofthetandtatbabar
AT zhaom measurementsofthetmassandthemassdifferenceofthetandtatbabar