Measurement of the direct CP violating charge asymmetry in $B^\pm \rightarrow \mu^\pm \nu_\mu D^{0}$ decays

Abstract : We present the first measurement of the CP violating charge asymmetry in $B^\pm \to \mu^\pm \nu_\mu {D}^0$ decays using the full Run II integrated luminosity of 10.4 fb$^{-1}$ in proton-antiproton collisions collected with the D0 detector at the Fermilab Tevatron Collider. We measure a difference in the yield of $B^-$ and $B^+$ mesons in these decays by fitting the reconstructed invariant mass distributions. This results in an asymmetry of $A^{\mu D^{0}} =\left[ -0.03 \pm 0.27 \right]\%$, which is consistent with standard model predictions.
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Physical Review D, American Physical Society, 2017, 95, pp.031101(R) 〈http://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.031101〉. 〈10.1103/PhysRevD.95.031101〉
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http://hal.in2p3.fr/in2p3-01351230
Contributeur : Danielle Cristofol <>
Soumis le : mercredi 3 août 2016 - 08:31:53
Dernière modification le : mardi 22 mai 2018 - 21:48:11

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V.M. Abazov, M.-C. Cousinou, A. Duperrin, W. Geng, E. Kajfasz, et al.. Measurement of the direct CP violating charge asymmetry in $B^\pm \rightarrow \mu^\pm \nu_\mu D^{0}$ decays. Physical Review D, American Physical Society, 2017, 95, pp.031101(R) 〈http://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.031101〉. 〈10.1103/PhysRevD.95.031101〉. 〈in2p3-01351230〉

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