Anomalous decays of η′ and η into four pions

We report about the calculation of the branching ratios of the yet unmeasured η′ decays into four pions, based on a combination of chiral perturbation theory and vector-meson dominance [1]. The decays η′ → 2(π+π−) and η′ → π+π−2π0 are P-wave dominated and can largely be thought to proceed via two ρ...

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Bibliographic Details
Main Author: Wirzba Andreas
Format: Article
Language:English
Published: EDP Sciences 2012-12-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20123703001