Title

Determination of the Dalitz plot parameter α for the decay η → 3π0 with the Crystal Ball at MAMI-B

Publication Title

The European Physical Journal A

Publication Date

2-2009

Document Type

Article

DOI

10.1140/epja/i2008-10710-7

Keywords

Dalitz plot parameter α for the decay η → 3π0, Crystal Ball at MAMI-B

Disciplines

Physics

Abstract

A precise measurement of the Dalitz plot parameter, α , for the η → 3π0 decay is presented. The experiment was performed with the Crystal Ball and TAPS large-acceptance photon detectors at the tagged photon beam facility of the MAMI-B electron accelerator in Mainz. High statistics of 1.8 · 106 η → 3π0 events were obtained, giving the result α = - 0.032±0.002stat±0.002syst .