Searches for B meson decays to phiphi, phirho, phifzero(980), and fzero(980)fzero(980) final states

TL;DR

This study searched for rare B meson decays involving phi, rho, and f0(980) mesons using a large data sample but found no significant signals, setting upper limits on their branching fractions.

Contribution

First comprehensive search for B decays to phi, f0(980), and rho mesons with stringent upper limits established on their branching fractions.

Findings

No significant signals detected for the decay modes.

Upper limits on branching fractions are set at 90% confidence level.

Results constrain theoretical models of B meson decays.

Abstract

We present the results of searches for B decays to charmless final states involving phi, fzero(980), and charged or neutral rho mesons. The data sample corresponds to 384 million BBbar pairs collected with the babar detector operating at the PEP-II asymmetric-energy epem collider at SLAC. We find no significant signals and determine the following 90% confidence level upper limits on the branching fractions, including systematic uncertainties: B(B0->phiphi) < 2.0 x 10^-7, B(B+->phirho+) < 30 x 10^-7, B(B0->phirho0) < 3.3 x 10^-7, B(B0-phif0) x B(f0->pi+pi-) < 3.8 x 10^-7, and B(B0->f0f0) x B(f0->pi+pi-) x B(f0->K+K-) < 2.3 x 10^-7