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.