Dispersion relations for $$\eta '\rightarrow \eta \pi \pi $$ η ′ → η π π

Abstract We present a dispersive analysis of the decay amplitude for $$\eta '\rightarrow \eta \pi \pi $$ η ′ → η π π that is based on the fundamental principles of analyticity and unitarity. In this framework, final-state interactions are fully taken into account. Our dispersive representation...

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Bibliographic Details
Main Authors: Tobias Isken, Bastian Kubis, Sebastian P. Schneider, Peter Stoffer
Format: Article
Language:English
Published: SpringerOpen 2017-07-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-017-5024-1