Measurement of the direct CP violating charge asymmetry in B±→μ±νμD0 Decays

Abazov, V. M. and Abbott, B. and Acharya, B. S. and Agnew, J. P. and Alexeev, G. D. and Alkhazov, G. and Alton, A. and Askew, A. and Atkins, S. and Augsten, K. and Aushev, V. and Aushev, Y. and Avila, C. and Badaud, F. and Bagby, L. and Baldin, B. and Bandurin, D. V. and Barberis, E. and Baringer, P. and Bartlett, J. F. and Bassler, U. and Bazterra, V. and Begalli, M. and Bellantoni, L. and Bernardi, G. and Bernhard, R. and Bertram, I. and Besanifmmode çelse çon, M. and Beuselinck, R. and Bhat, P. C. and Bhatia, S. and Bhatnagar, V. and Blazey, G. and Blessing, S. and Bloom, K. and Boehnlein, A. and Boline, D. and Boos, E. E. and Borissov, G. and Borysova, M. and Brandt, A. and Brandt, O. and Brochmann, M. and Brock, R. and Bross, A. and Bu, X. B. and Price, D. and Ratoff, P. N. and Ross, A. and Williams, M. R. J. (2017) Measurement of the direct CP violating charge asymmetry in B±→μ±νμD0 Decays. Physical Review D, 95 (3). ISSN 1550-7998

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We present the first measurement of the C P violating charge asymmetry in B ± → μ ± ν μ 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 μ D 0 = [ − 0.14 ± 0.20 ] % , which is consistent with standard model predictions.

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Journal Article
Journal or Publication Title:
Physical Review D
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© 2017 American Physical Society
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20 Dec 2017 14:32
Last Modified:
30 Sep 2020 01:56