We present results of a search for CP violation in B0− B⎯⎯⎯0 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 CP≡[N(B0B0)−N(B⎯⎯⎯0B⎯⎯⎯0)]/[N(B0B0)+N(B⎯⎯⎯0B⎯⎯⎯0)]=(0.06±0.17+0.38−0.32)%, corresponding to ΔCP=1−|q/p|=(0.29±0.84+1.88−1.61)×10−3.

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for CP Violation in B-0-(B-0)over bar Mixing Using Partial Reconstruction of B-0 -> D*(-)Xl(+)nu(l) and a Kaon Tag. PHYSICAL REVIEW LETTERS, 111(10), 1-7 [10.1103/PhysRevLett.111.101802].

Search for CP Violation in B-0-(B-0)over bar Mixing Using Partial Reconstruction of B-0 -> D*(-)Xl(+)nu(l) and a Kaon Tag

PATRIGNANI, CLAUDIA;
2013

Abstract

We present results of a search for CP violation in B0− B⎯⎯⎯0 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 CP≡[N(B0B0)−N(B⎯⎯⎯0B⎯⎯⎯0)]/[N(B0B0)+N(B⎯⎯⎯0B⎯⎯⎯0)]=(0.06±0.17+0.38−0.32)%, corresponding to ΔCP=1−|q/p|=(0.29±0.84+1.88−1.61)×10−3.
2013
Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for CP Violation in B-0-(B-0)over bar Mixing Using Partial Reconstruction of B-0 -> D*(-)Xl(+)nu(l) and a Kaon Tag. PHYSICAL REVIEW LETTERS, 111(10), 1-7 [10.1103/PhysRevLett.111.101802].
Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lee, M. J.; Ly...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/535535
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