Radiative and pionic transitions $Z_c(4020{)}^0\to X(3872)\gamma$ and $Z_c(4020{)}^{\pm }\to X(3872){\pi }^{\pm }$

Abstract

The radiative transitions from the neutral exotic $Z_c(4020{)}^0$ resonance to $X(3872)$ with emission of a photon and the pionic transitions from the charged $Z_c(4020{)}^{\pm }$ to $X(3872)$ and a charged pion ${\pi }^{\pm }$ 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.

arXiv comment9 pages, 4 figures

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Cited by in corpus (11)

• Pentaquark and Tetraquark states
• Novel Method for Precisely Measuring the $X(3872)$ Mass
• A Phenomenological analysis on isospin-violating decay of $X(3872)$
• Establishing the heavy quark spin and light flavor molecular multiplets of the $X(3872)$, $Z_c(3900)$ and $X(3960)$
• Possible precise measurements of the $X(3872)$ mass with the $e^{+}{e}^{-}\to {\pi }^0\gamma X(3872)$ and $p\bar{p}\to \gamma X(3872)$ reactions
• Radiative Transitions of Charmoniumlike Exotics in the Dynamical Diquark Model
• Role of the short-range dynamics in the formation of $D^{(\ast )}{\bar{D}}^{(\ast )}/B^{(\ast )}{\bar{B}}^{(\ast )}$ hadronic molecules
• Hidden-charm pentaquark formation in antiproton - deuterium collisions
• Radiative decays of the neutral $Z_c(3900)$ and $Z_c(4020)$
• Study of $e^{+}{e}^{-}\to {\pi }^{0}X(3872)\gamma$ and search for $Z_c(4020{)}^0\to X(3872)\gamma$
• Investigation of the $X(4020)$ peak in the $D^{\ast }{\bar{D}}^{\ast }$ and $\pi h_c$ channels