Study of B{+-,0} --> J/\psi\ K+ K- K{+-,0} and search for B0 --> J/\psi\ \phi\ at BABAR

TL;DR

This paper reports on measurements of rare B meson decays involving J/psi and phi particles, searches for new states, and sets limits on certain decay modes using a large dataset from the BABAR experiment.

Contribution

It provides new branching fraction measurements, explores the J/psi phi mass spectrum for potential new states, and reports a null result for B0 --> J/psi phi decay.

Findings

Measured branching fractions for B+-,0 --> J/psi K+ K- K+-,0

Analyzed J/psi phi mass distribution for new charmonium-like states

No evidence found for B0 --> J/psi phi decay

Abstract

We study the rare B meson decays B{+-,0} --> J/\psi\ K^+ K^- K{+-,0}, B{+-,0} --> J/\psi\ \phi\ K{+-,0}, and search for B0 --> J/\psi\ \phi, using 469 million BBbar events collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II e+e- asymmetric-energy collider. We present new measurements of branching fractions and a study of the J/\psi\phi mass distribution in search of new charmonium-like states. In addition, we search for the decay B0 --> J/\psi\ \phi, and find no evidence of a signal.