Measurement of the direct CP violating charge asymmetry in B± → μ±ν μD0 decays

Authors

V. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Daniel R. Claes, University of Nebraska-LincolnFollow
Kayle DeVaughan, University of Nebraska-Lincoln
Aaron Dominguez, University of Nebraska-LincolnFollow
M. Eads, University of Nebraska-Lincoln, Lincoln,Follow
Ioannis Katsanos, University of Nebraska-LincolnFollow
Sudhir Malik, University of Nebraska-LincolnFollow
Gregory Snow, University of Nebraska-LincolnFollow
M. Voutilainen, University of Nebraska-Lincoln
D0 Collaboration

Document Type

Article

Date of this Version

2017

Citation

PHYSICAL REVIEW D 95, 031101(R) (2017)

Comments

© 2017 American Physical Society

DOI: 10.1103/PhysRevD.95.031101

Abstract

We present the first measurement of the CP violating charge asymmetry in B^± → μ^±ν_μD⁰ 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^μD0 = [−0.14 ± 0.20]%, which is consistent with standard model predictions.