Determine the quantum numbers of X(6900) from photon-photon fusion in ultra-peripheral heavy ion collisions

We study the production of the X(6900) in the ultra-peripheral heavy ion collisions at the LHC energy region. The potential quantum numbers of X(6900) could be 0^±+ and 2^±+. We find that the transverse momentum and the polar angle distributions of X(6900) can be used to distinguish these four potential quantum numbers. These characteristic distributions originate from linearly polarized photons emitted by relativistic nuclei and can be measured by further LHC experiments.