Radiative decays of the Y(3940), Z(3930), and the X(4160) as dynamically generated resonances
Radiative decays of the Y(3940), Z(3930), and the X(4160) as dynamically generated resonances
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DOI:
10.1103/physrevd.83.114015
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发表时间:
2010-10
影响因子:
5
通讯作者:
T. Branz;R. Molina;E. Oset
中科院分区:
文献类型:
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作者:
T. Branz;R. Molina;E. Oset
We study the radiative decay properties of the charmonium-like X, Y and Z mesons generated dynamically from vector meson-vector meson interaction in the framework of a unitarized hidden-gauge formalism. In the present work we calculate the one- and two-photon decay widths of the hidden-charm Y(3940), Z(3930) (or X(3915)) and X(4160) mesons in the framework of the vector meson dominance formalism. We obtain good agreement with experiment in case of the two photon width of the X(3915) which we associate with the $2^+$ resonance that we find at 3922 MeV.