Charmonium content of $\chi_{c1}(3872)$ in light-cone sum rules at twist 3

Tarik Akan; Mehmet Ali Olpak; Altug Ozpineci

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arXiv · 2503.15632

Charmonium content of $\chi_{c1}(3872)$ in light-cone sum rules at twist 3

Tarik Akan·Mehmet Ali Olpak·Altug Ozpineci

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Abstract

In this study, we utilize light-cone QCD sum rules at twist-3 accuracy to compute the coupling parameters of the $\chi_{c1}(2P)$ state with $D$ and $D^*$ mesons. The analysis reveals that the observed $\chi_{c1}(3872)$ meson incorporates significant amounts of both charmonium and molecular components. The interplay between these components highlights the exotic nature of $\chi_{c1}(3872)$. Furthermore, implications for a possible mixing between the $\chi_{b1}(2P)$ state and a potential $B\bar{B}^*$ molecule is discussed. These findings contribute to the understanding of exotic hadron states and their intricate internal structures.

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Tarik Akan, Mehmet Ali Olpak, Altug Ozpineci. 2025-03-19. Charmonium content of $\chi_{c1}(3872)$ in light-cone sum rules at twist 3. https://arxiv.org/abs/2503.15632

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