Branching fractions for chi_cJ -> p p-bar pi^0, p p-bar eta, and p p-bar omega

TL;DR

This paper reports precise measurements of branching fractions for chi_cJ decays into proton-antiproton pairs with pi^0, eta, and omega mesons, including the first measurement for the omega channel, using a large data sample.

Contribution

First measurement of chi_cJ -> p p-bar omega branching fractions and improved precision for other decay modes using CLEO-c data.

Findings

Consistent results with previous measurements for pi^0 and eta channels.

First measurement of chi_cJ -> p p-bar omega branching fractions.

More precise measurements for chi_cJ -> p p-bar pi^0 and eta decays.

Abstract

Using a sample of 25.9 million psi(2S) decays acquired with the CLEO-c detector at the CESR e^+e^- collider, we report branching fractions for the decays chi_cJ -> p p-bar pi^0, p p-bar eta, and p p-bar omega, with J=0,1,2. Our results for B(chi_cJ-> p p-bar pi^0) and B(chi_cJ-> p p-bar eta) are consistent with, but more precise than, previous measurements. Furthermore, we include the first measurement of B(chi_cJ-> p p-bar omega).