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Title: Search for mixing-induced CP violation using partial reconstruction of B¯0D*+X-ν¯ and kaon tagging

We describe in detail a previously published measurement of CP violation in B0-B¯0 oscillations, based on an integrated luminosity of 425.7 fb-1 collected by the BABAR experiment at the PEPII collider. We apply a novel technique to a sample of about 6 million B¯0→D*+-ν¯ decays selected with partial reconstruction of the D*+ meson. The charged lepton identifies the flavor of one B meson at its decay time, the flavor of the other B is determined by kaon tagging. We determine a CP violating asymmetry ACP=(N(B0B0)-N(B¯00))/(N(B0B0)+N(B¯00))=(0.06±0.17+0.38-0.32)% corresponding to ΔCP=1-|q/p|=(0.29±0.84+1.88-1.61)×10-3. This measurement is consistent and competitive with those obtained at the B factories with dilepton events.
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 2470-0010; arXiv:1506.00234
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review D; Journal Volume: 93
American Physical Society (APS)
Research Org:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org:
US DOE Office of Science (DOE SC), High Energy Physics (HEP)
Contributing Orgs:
BABAR Collaboration
Country of Publication:
United States