# 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.
Document type :
Journal articles

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Submitted on : Wednesday, August 3, 2016 - 8:31:53 AM
Last modification on : Friday, January 7, 2022 - 3:43:08 AM

### Citation

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) ⟨10.1103/PhysRevD.95.031101⟩. ⟨in2p3-01351230⟩

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