High-statistics measurement of the η→3π0 decay at the Mainz Microtron

A2 Collaboration at MAMI

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The largest, at the moment, statistics of 7×106η→3π0 decays, based on 6.2×107η mesons produced in the γp→ηp reaction, has been accumulated by the A2 Collaboration at the Mainz Microtron, MAMI. It allowed a detailed study of the η→3π0 dynamics beyond its conventional parametrization with just the quadratic slope parameter α and enabled, for the first time, a measurement of the second-order term and a better understanding of the cusp structure in the neutral decay. The present data are also compared to recent theoretical calculations that predict a nonlinear dependence along the quadratic distance from the Dalitz-plot center.

Original languageEnglish
Article number065203
JournalPhysical Review C
Volume97
Issue number6
DOIs
Publication statusPublished - 7 Jun 2018

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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