chi_{cJ} Decays to h^+h^-h^0

TL;DR

This study analyzes three-body decays of chi_cJ states produced in psi(2S) radiative decays, measuring branching fractions and substructures using a large data sample from the CLEO detector.

Contribution

First measurement of branching fractions and substructure analysis for chi_cJ three-body decays in psi(2S) radiative decays.

Findings

Large samples for chi_c1 decays to pi+ pi- eta, K+ K- pi0, and pi+ K- K0S.

Identification of dominant substructures in chi_c1 decays.

Upper limits set for certain decay modes.

Abstract

Using a sample of 3 million psi(2S) decays recorded by the CLEO detector, we study three-body decays of the chi_c0, chi_c1, and chi_c2 produced in radiative decays of the psi(2S). We consider the final states pi+ pi- eta, K+ K- eta, p p-bar eta, pi+ pi- eta-prime, K+ K- pi0, p p-bar pi0, pi+ K- K0S, and K+ p-bar Lambda, measuring branching fractions or placing upper limits. For chi_c1 decays to pi+ pi- eta, K+ K- pi0, and pi+ K- K0S our observed samples are large enough to indicate the largest contributions to the substructure.