The $X(3872)$ to $\psi (2S)$ yield ratio in heavy-ion collisions

L. M. Abreu, F. S. Navarra, H. P. L. Vieira

In this work we evaluate the $X(3872)$ to $\psi (2S)$ yield ratio ($N_X/N_{\psi (2S)}$) in Pb Pb collisions, taking into account the interactions of the $\psi (2S)$ and $X(3872)$ states wi…