Modification by pion exchange of near threshold resonance line shape in open heavy flavor channel

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Abstract

The effect of the pion exchange on the line shape of near threshold bottomoniumlike resonances decaying into an S wave pair of B(∗) mesons is considered. It is pointed out that this effect, parametrically enhanced by the heavy meson mass, can be of a practical significance in determining the parameters of the bottomoniumlike resonances such as the known Zb(10610) and Zb(10650) states.

Original languageEnglish (US)
Article number114003
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume92
Issue number11
DOIs
StatePublished - Dec 1 2015

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