Search for CP Violation in B⁰- B̅⁰ Mixing Using Partial Reconstruction of B⁰ → D*‾ Xℓ⁺ νℓ and a Kaon Tag

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Search for CP Violation in B⁰- B̅⁰ Mixing Using Partial Reconstruction of B⁰ → D*‾ Xℓ⁺ νℓ and a Kaon Tag

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Title: Search for CP Violation in B⁰- B̅⁰ Mixing Using Partial Reconstruction of B⁰ → D*‾ Xℓ⁺ νℓ and a Kaon Tag
Author(s):
Lees, J. P.;
Poireau, V.;
Tisserand, V.;
Grauges, E.;
Palano, A.;
Eigen, G.;
Stugu, B.;
Lou, Xinchou;
Izen, Joseph M.;
BaBar Collaboration
Date Created: 2013-09-03
Format: Text
Item Type: Article
Keywords: CP violation (Nuclear physics)
Kaons
Asymmetry
Abstract: We present results of a search for CP violation in B⁰- B̅⁰ mixing with the BABAR detector. We select a sample of B⁰ → D*‾ Xℓ⁺ν decays with a partial reconstruction method and use kaon tagging to assess the flavor of the other B meson in the event. We determine the CP violating asymmetry A_{CP} ≡ [N(B⁰B⁰) - N(B̅⁰B̅⁰)]/N(B⁰B⁰) + N(B̅⁰B̅⁰)] = (0.06 ± 0.17_{-0.32} ^{+0.38})%, corresponding to Δ_{CP} = 1 - |q/p| = (0.29 ± 0.84_{-1.61}^{+1.88}) x 10⁻³.
Publisher: American Physical Society
ISSN: 0031-9007
Source: Physical Review Letters
Link to Related Resource: http://dx.doi.org/10.1103/PhysRevLett.111.101802
Persistent Link: http://hdl.handle.net/10735.1/3845
Bibliographic Citation: Lees, J. P., V. Poireau, V. Tisserand, E. Grauges, et al. 2013. "Search for CP violation in B⁰- B̅⁰ mixing using partial reconstruction of B⁰ → D*⁻ Xℓ⁺ν_ℓ and a kaon tag." Physical Review Letters 111(10), doi:10.1103/PhysRevLett.111.101802
Terms of Use: ©2013 American Physical Society

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