The Neutral Decay Modes of the Eta-Meson

Details The Neutral Decay Modes of the Eta-Meson The Neutral Decay Modes of the Eta-Meson

2002-02-11

arxiv.org/abs/nucl-ex/0202008v1

Phys.ScriptaT99:114-122,2002

Physics

Nuclear Physics

Nuclear Experiment

27 pages, 3 figures; Contribution to the Eta Physics Handbook, Workshop on Eta Physics, Uppsala 2001

Scientific paper

10.1238/Physica.Topical.099a0011

The neutral decay modes of the eta meson are reviewed. The most recent results obtained with the Crystal Ball multiphoton detector at BNL are incorporated. This includes a new, precise result for the slope parameter alpha of the Dalitz plot in eta -> 3pi0 decay and a new, lower branching ratio for eta -> pi0 gamma gamma which is consistent with chiral perturbation theory. Recently-obtained limits are given for novel tests of CP and C invariance based on several rare eta decays.

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