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 τ lepton, Mτ, based on 423fb-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...

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Main Authors: Aubert, B, Karyotakis, Y, Lees, J, Poireau, V, Prencipe, E, Prudent, X, Tisserand, V, Tico, J, Grauges, E, Martinelli, M, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Battaglia, M, Brown, D, Kerth, LT, Kolomensky, Y, Lynch, G, Osipenkov, I, Tackmann, K, Tanabe, T, Hawkes, C, Soni, N
Format: Journal article
Language:English
Published: 2009
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author Aubert, B
Karyotakis, Y
Lees, J
Poireau, V
Prencipe, E
Prudent, X
Tisserand, V
Tico, J
Grauges, E
Martinelli, M
Palano, A
Pappagallo, M
Eigen, G
Stugu, B
Sun, L
Battaglia, M
Brown, D
Kerth, LT
Kolomensky, Y
Lynch, G
Osipenkov, I
Tackmann, K
Tanabe, T
Hawkes, C
Soni, N
author_facet Aubert, B
Karyotakis, Y
Lees, J
Poireau, V
Prencipe, E
Prudent, X
Tisserand, V
Tico, J
Grauges, E
Martinelli, M
Palano, A
Pappagallo, M
Eigen, G
Stugu, B
Sun, L
Battaglia, M
Brown, D
Kerth, LT
Kolomensky, Y
Lynch, G
Osipenkov, I
Tackmann, K
Tanabe, T
Hawkes, C
Soni, N
author_sort Aubert, B
collection OXFORD
description We present the result from a precision measurement of the mass of the τ lepton, Mτ, based on 423fb-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-. © 2009 The American Physical Society.
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spelling oxford-uuid:e8e6ebb2-61b0-4802-b128-145dd52e0a8a2022-03-27T10:50:17ZMeasurements of the tau mass and the mass difference of the tau(+) and tau(-) at BABARJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e8e6ebb2-61b0-4802-b128-145dd52e0a8aEnglishSymplectic Elements at Oxford2009Aubert, BKaryotakis, YLees, JPoireau, VPrencipe, EPrudent, XTisserand, VTico, JGrauges, EMartinelli, MPalano, APappagallo, MEigen, GStugu, BSun, LBattaglia, MBrown, DKerth, LTKolomensky, YLynch, GOsipenkov, ITackmann, KTanabe, THawkes, CSoni, NWe present the result from a precision measurement of the mass of the τ lepton, Mτ, based on 423fb-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-. © 2009 The American Physical Society.
spellingShingle Aubert, B
Karyotakis, Y
Lees, J
Poireau, V
Prencipe, E
Prudent, X
Tisserand, V
Tico, J
Grauges, E
Martinelli, M
Palano, A
Pappagallo, M
Eigen, G
Stugu, B
Sun, L
Battaglia, M
Brown, D
Kerth, LT
Kolomensky, Y
Lynch, G
Osipenkov, I
Tackmann, K
Tanabe, T
Hawkes, C
Soni, N
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
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