Test of charge conjugation invariance in the decay of the eta meson into pi(+)pi(-)pi(0)

TL;DR

This study tests charge conjugation symmetry in eta meson decay by analyzing approximately 100,000 decay events, finding no evidence of C violation within the experimental accuracy.

Contribution

The paper provides the first large-scale analysis of eta decay events to test charge conjugation invariance with high statistical precision.

Findings

Asymmetry parameters are consistent with zero, indicating no C violation.

Approximately 10^5 decay events analyzed.

Results support charge conjugation invariance in eta decay.

Abstract

In this work we present the preliminary results of the analysis of the pp->pp eta(->pp pi(+)pi(-)pi(0) reaction aiming to test the charge conjugation symmetry C in strong interactions. Based on approximately $10^5$ identified eta->pi(+)pi(-)pi(0) decay events we have extracted asymmetry parameters sensitive to C symmetry violation for different isospin values of the final state and we have established that all are consistent with zero within the obtained accuracy.