Effect of the eta eta channel and interference phenomena in the two-pion transitions of charmonia and bottomonia

Surovtsev, Yu. S.; Bydzovsky, P.; Gutsche, T.; Kaminski, R.; Lyubovitskij, V. E.; Nagy, M.; Bondarenko, S; Burov, V; Malakhov, A

Abstract

The basic shape of di-pion mass spectra in the two-pion transitions of both charmonia and bottomonia states is explained by a unified mechanism based on contributions of the pi pi, K (K) over bar, and eta eta coupled channels including their interference. The role of the individual f(0) resonances in shaping the di-pion mass distributions in the charmonia and bottomonia decays is considered.

Más información

Título según WOS: ID WOS:000406699600025 Not found in local WOS DB
Título de la Revista: MESON 2016 - 14TH INTERNATIONAL WORKSHOP ON MESON PRODUCTION, PROPERTIES AND INTERACTION
Volumen: 138
Editorial: E D P Sciences
Fecha de publicación: 2017
DOI:

10.1051/epjconf/201713801025

Notas: ISI