Relative rates of B meson decays into ψ(2S) and J/ψ mesons

Authors

V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Gregory Snow, University of Nebraska-LincolnFollow
D0 Collaboration

Date of this Version

2009

Comments

Published in PHYSICAL REVIEW D 79, 111102(R) (2009). Copyright © 2009 The American Physical Society. Used by permission.

Abstract

We report on a study of the relative rates of B meson decays into ψ(2S) and J/ψ mesons using 1.3 fb^-1 of pp collisions at √s = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe the channels B⁰_s → ψ(2S)φ, B⁰_s → J/ψφ, B^± → ψ(2S)K^±, and B^± → i>J/ψK^± and we measure the relative branching fractions for these channels to be (B(B_s⁰ → ψ(2S)φ))/(B(B_s⁰ → J/ψφ)) = 0.53 ± 0.10 (stat) ± 0.07 (syst) ± 0.06 (B), (B(B^± → ψ(2S)K^±))/(B(B^± → J/ψK^{±) = 0.63 ± 0.05(stat) ± 0.03(syst) ± 0.07 (B), where the final error corresponds to the uncertainty in the J/ψ and ψ(2S) branching ratio into two muons.}