Radiative transitions of charmoniumlike exotics in the dynamical diquark model
Radiative transitions of charmoniumlike exotics in the dynamical diquark model
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DOI:
10.1103/physrevd.103.094024
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发表时间:
2021-02
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影响因子:
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通讯作者:
Justin M. Gens;Jesse F. Giron;R. Lebed
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文献类型:
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作者:
Justin M. Gens;Jesse F. Giron;R. Lebed
Using the dynamical diquark model, we calculate the electric-dipole radiative decay widths to X(3872) of the lightest negative-parity exotic candidates, including the four I = 0, J C = 1−− (“Y ”) states. The O(100–1000 keV) values obtained test the hypothesis of a common substructure shared by all of these states. We also calculate the magnetic-dipole radiative decay width for Zc(4020) → γX(3872), and find it to be rather smaller (< 10 keV) than its predicted value in molecular models.