First Measurement of the Inclusive Branching Ratio of b Hadrons to phi Mesons in Z0 Decays

TL;DR

This paper reports the first measurement of how often b hadrons decay into phi mesons in Z0 decays, providing new data on b hadron decay processes.

Contribution

It presents the first measurement of the inclusive branching ratio of b hadrons to phi mesons in Z0 decays, using OPAL detector data at LEP.

Findings

Br(b->phi+X) = 0.0282+-0.0013(stat.)+-0.0019(syst.)

First measurement of this decay channel in Z0 decays

Provides data for testing b hadron decay models

Abstract

The inclusive production rate of phi mesons from the decay of b hadrons produced in Z0 decays was measured to be Br(b->phi+X) = 0.0282+-0.0013(stat.)+-0.0019(syst.), using data collected by the OPAL detector at LEP.