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Title: Study of CP Asymmetry in B0-B¯0 Mixing with Inclusive Dilepton Events

We present a measurement of the asymmetry ACP 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 471×106 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.
Authors:
 [1]
  1. et al.
Publication Date:
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
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Laboratory (SLAC)
Sponsoring Org:
US DOE Office of Science (DOE SC); High Energy Physics (HEP); National Science Foundation (NSF)
Contributing Orgs:
BABAR Collaboration
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS Experiment-HEP; HEPEX