Search for B decays into eta' rho, eta' K*, eta' phi, eta' omega and eta' eta(') at Belle

TL;DR

This study searches for specific charmless B meson decays involving eta' and various vector mesons, using a large data sample, but finds no significant signals and sets upper limits on their branching fractions.

Contribution

First comprehensive search for these B decay modes at Belle, establishing upper limits and guiding future theoretical and experimental work.

Findings

No significant signals detected for the decay modes.

Upper limits on branching fractions range from 0.5 to 6.5 x 10^{-6}.

Results constrain theoretical models of B meson decays.

Abstract

We report on a search for the exclusive two-body charmless hadronic B meson decays B-> eta' rho, B-> eta' K*, B-> eta' phi, B-> eta' omega and B->eta' eta('). The results are obtained from a data sample containing 535 x 10^6 BBbar pairs that were collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We find no significant signals and report upper limits in the range 0.5-6.5 x 10^{-6} for all of the above decays.