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Title: Study of C P Asymmetry in B 0 - B ¯ 0 Mixing with Inclusive Dilepton Events

Abstract

We present a measurement of the asymmetry A CP between same-sign inclusive dilepton samples ℓ ++ and ℓ -- (ℓ=e, μ) from semileptonic B decays in Υ(4S)→BB¯ events, using the complete data set recorded by the BABAR experiment near the Υ(4S) resonance, corresponding to 471×10 6 BB¯ pairs. The asymmetry A CP allows comparison between the mixing probabilities P(B¯ 0→B 0) and P(B 0→B¯ 0), and therefore probes CP and T violation. The result, A CP=[-3.9±3.5(stat)±1.9(syst)]×10 -3, is consistent with the standard model expectation.

Authors:
 [1]
  1. et al.
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); High Energy Physics (HEP); National Science Foundation (NSF)
Contributing Org.:
BABAR Collaboration
OSTI Identifier:
1165919
Report Number(s):
SLAC-PUB-15983
Journal ID: ISSN 0031-9007; PRLTAO; arXiv:1411.1842
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 114; Journal Issue: 8
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Experiment-HEP; HEPEX

Citation Formats

Lees, J. P. Study of CP Asymmetry in B0-B¯0 Mixing with Inclusive Dilepton Events. United States: N. p., 2015. Web. doi:10.1103/PhysRevLett.114.081801.
Lees, J. P. Study of CP Asymmetry in B0-B¯0 Mixing with Inclusive Dilepton Events. United States. doi:10.1103/PhysRevLett.114.081801.
Lees, J. P. Sun . "Study of CP Asymmetry in B0-B¯0 Mixing with Inclusive Dilepton Events". United States. doi:10.1103/PhysRevLett.114.081801. https://www.osti.gov/servlets/purl/1165919.
@article{osti_1165919,
title = {Study of CP Asymmetry in B0-B¯0 Mixing with Inclusive Dilepton Events},
author = {Lees, J. P.},
abstractNote = {We present a measurement of the asymmetry ACP between same-sign inclusive dilepton samples ℓ+ℓ+ and ℓ-ℓ- (ℓ=e, μ) from semileptonic B decays in Υ(4S)→BB¯ events, using the complete data set recorded by the BABAR experiment near the Υ(4S) resonance, corresponding to 471×106 BB¯ pairs. The asymmetry ACP allows comparison between the mixing probabilities P(B¯0→B0) and P(B0→B¯0), and therefore probes CP and T violation. The result, ACP=[-3.9±3.5(stat)±1.9(syst)]×10-3, is consistent with the standard model expectation.},
doi = {10.1103/PhysRevLett.114.081801},
journal = {Physical Review Letters},
number = 8,
volume = 114,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 2015},
month = {Sun Feb 01 00:00:00 EST 2015}
}