Determination of the structure of the $X(3872)$ in $\bar{p}A$ collisions

Abstract

Currently, the structure of the $X(3872)$ meson is unknown. Different competing models of the $c\bar{c}$ exotic state $X(3872)$ exist, including the possibilities that this state is either a mesonic molecule with dominating $D^0{\bar{D}}^{\ast 0}+c.c.$ composition, a $c\bar{c}q\bar{q}$ tetraquark, or a $c\bar{c}$-gluon hybrid state. It is expected that the $X(3872)$ state is rather strongly coupled to the $\bar{p}p$ channel and, therefore, can be produced in $\bar{p}p$ and $\bar{p}A$ collisions at PANDA. We propose to test the hypothetical molecular structure of $X(3872)$ by studying the $D$ or ${\bar{D}}^{\ast }$ stripping reactions on a nuclear residue.

19 pages, 8 figures; version accepted in PLB

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• Momentum sharing in imbalanced Fermi systems
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Cited by in corpus (9)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
• X(3872): propagating in a dense medium
• $D{\bar{D}}^{\ast }$ scattering and ${\chi }_{c1}(3872)$ in nuclear matter
• Analysis of the $X(3842)$ as a D-wave charmonium meson
• Masses of tetraquark states in the hidden charm sector above $D-D^{\ast }$ threshold
• Probing the structure of $X(3872)$ in photoproduction
• Test of the $X(3872)$ Structure in Antiproton-Nucleus Collisions