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Search for mixing-induced CP violation using partial reconstruction of B ̄ 0 →d∗+X- ν ̄ and kaon tagging

Lees, J. P.
•
Poireau, V.
•
Tisserand, V.
altro
Wu, S. L.
2016
  • journal article

Periodico
PHYSICAL REVIEW D
Abstract
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 ̄0B ̄0))/(N(B0B0)+N(B ̄0B ̄0))=(0.06±0.17-0.32+0.38)% corresponding to ΔCP=1-|q/p|=(0.29±0.84-1.61+1.88)×10-3. This measurement is consistent and competitive with those obtained at the B factories with dilepton events.
DOI
10.1103/PhysRevD.93.032001
WOS
WOS:000369731500001
Archivio
http://hdl.handle.net/11368/2899048
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84959493130
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.93.032001
Diritti
closed access
FVG url
https://arts.units.it/request-item?handle=11368/2899048
Soggetti
  • Nuclear and High Ener...

Scopus© citazioni
2
Data di acquisizione
Jun 14, 2022
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Web of Science© citazioni
2
Data di acquisizione
Mar 26, 2024
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Data di acquisizione
Apr 19, 2024
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