We present results of a search for CP violation in B0- B̄0 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(B̄0B̄0)]/[N(B0B0)+N(B̄0B̄0)]= (0.06±0.17-0.32+0.38)%, corresponding to ΔCP=1-|q/p|=(0. 29±0.84-1.61+1.88)×10-3.

Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for CP violation in B0- B̄0 mixing using partial reconstruction of B0→D* -Xℓ+νℓ and a Kaon Tag. PHYSICAL REVIEW LETTERS, 111(10) [10.1103/PhysRevLett.111.101802].

Search for CP violation in B0- B̄0 mixing using partial reconstruction of B0→D* -Xℓ+νℓ and a Kaon Tag

Martinelli M.;CARPINELLI, Massimo;
2013

Abstract

We present results of a search for CP violation in B0- B̄0 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(B̄0B̄0)]/[N(B0B0)+N(B̄0B̄0)]= (0.06±0.17-0.32+0.38)%, corresponding to ΔCP=1-|q/p|=(0. 29±0.84-1.61+1.88)×10-3.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2013
111
10
101802
none
Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for CP violation in B0- B̄0 mixing using partial reconstruction of B0→D* -Xℓ+νℓ and a Kaon Tag. PHYSICAL REVIEW LETTERS, 111(10) [10.1103/PhysRevLett.111.101802].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389223
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