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Radiative Transitions of Charmoniumlike Exotics in the Dynamical Diquark Model

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 نشر من قبل Jesse Giron
 تاريخ النشر 2021
  مجال البحث
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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 $I=0$, $J^{PC} ! = ! 1^{--}$ ($Y$) 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 $Z_c(4020)^0 ! to ! gamma X(3872)$, and find it to be rather smaller ($<$~10 keV) than its predicted value in molecular models.

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