Transverse momentum distributions of charmonium states with the statistical hadronization model

摘要

Calculations and predictions are presented within the framework of the statistical hadronization model for transverse momentum spectra of the charmonium statesJ/ψ,ψ(2S)andX(3872)produced in nucleus-nucleus collisions at LHC energies. The results are confronted with available data and exhibit very good agreement by using particle flow profiles from state-of-the-art hydrodynamic calculations. ForX(3872)production in Pb–Pb collisions we predict a transverse momentum distribution similar in shape to that forJ/ψwith a strong enhancement at low transverse momenta and a production yield of about 1% relative to that forJ/ψ.