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

Abstract

We report on a study of the relative rates of B meson decays into psi(2S) and J/psi mesons using 1.3 fb^-1 of pbar p collisions at sqrt(s) = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe the channels B^0_s -> psi(2S)phi, B^0_s -> J/psi phi, B^+/- -> psi(2S) K^+/-, and B^+/- -> J/psi K^+/- and we measure the relative branching fractions for these channels to be B(B^0_s -> psi(2S)phi)/B(B^0_s -> J/psi phi) = 0.55 +/- 0.11 (stat) +/- 0.07 (syst) +/- 0.06 (B), B(B^+/- -> psi(2S) K^+/-)/B(B^+/- -> J/psi K^+/-) = 0.65 +/- 0.04 (stat) +/- 0.03 (syst) +/- 0.07 (B) where the final error corresponds to the uncertainty in the J/psi and psi(2S) branching ratio into two muons.

arXiv commentPublished in Phys. Rev. D - Rapid Communication

References in corpus (8)

• High-Energy-Physics Event Generation with PYTHIA 6.1
• The Upgraded D0 Detector
• Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay
• First Flavor-Tagged Determination of Bounds on Mixing-Induced CP Violation in Bs -> J/psi phi Decays
• QCD analysis of inclusive B decay into charmonium
• Measurement of branching fractions for exclusive B decays to charmonium final states
• Measurement of the B^0_s lifetime in the exclusive decay channel B^0_s -> J/psi phi
• Observation of Bs to Psi(2S)phi and Measurement of Ratio of Branching Fractions B (Bs --> Psi(2S)phi) / B (Bs --> J/Psi phi)

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