Radiative and pionic transitions Zc (4020)0 →x (3872)γ and Zc (4020)± →x (3872)π± RADIATIVE and PIONIC TRANSITIONS Zc (4020)0 →x (3872)γ ... M. B. Voloshin

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Abstract

The radiative transitions from the neutral exotic Zc(4020)0 resonance to X(3872) with emission of a photon and the pionic transitions from the charged Zc(4020)± to X(3872) and a charged pion π± are considered for both charmoniumlike states being charmed meson-antimeson molecules. The underlying processes for these transitions are the decays of the charmed vector meson to pseudoscalar plus a photon or a pion. It is found that the discussed transition rates typically amount to a branching fraction of several permil with a peak at the vector meson pair threshold.

Original languageEnglish (US)
Article number054028
JournalPhysical Review D
Volume99
Issue number5
DOIs
StatePublished - Mar 1 2019

Bibliographical note

Funding Information:
This work is supported in part by the U.S. Department of Energy Grant No. DE-SC0011842.

Publisher Copyright:
© 2019 authors. Published by the American Physical Society.

Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.

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