Dynamics of the decay eta->3pi0

TL;DR

This paper measures the Dalitz plot parameter for the eta to three pi-zero decay using Brookhaven data, comparing results with previous measurements and theoretical models.

Contribution

It provides a new experimental measurement of the Dalitz plot parameter for eta decay, contributing to the understanding of meson decay dynamics.

Findings

Measured alpha parameter: -0.005 ± 0.007 (stat) ± 0.004 (syst)

Results are consistent with previous measurements

Comparison with theoretical predictions shows agreement within uncertainties

Abstract

The parameter $ \alpha = -0.005 \pm 0.007 (stat) \pm 0.004 (syst)$ describing the density of events within the $ \eta \to 3\pi^0 $ Dalitz plot has been measured using data from Brookhaven experiment E852. The result is compared to previous values and theoretical predictions.