Rapidity Dependent Transverse Momentum Spectra of Heavy Quarkonia Produced in Small Collision Systems at the LHC

Liu, Fu-Hu  (Institute of Theoretical Physics and State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan, Shanxi 030006, China) ; Gao, Li-Na (Department of Physics, Taiyuan Normal University, Jinzhong, Shanxi 030619, China) ; Li, Bao-Chun  (Institute of Theoretical Physics and State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan, Shanxi 030006, China)

23 May 2019

Abstract: The rapidity dependent transverse momentum spectra of heavy quarkonia ( $J/\psi$ and $\mathrm{Υ}$ mesons) produced in small collision systems such as proton-proton (pp) and proton-lead (p-Pb) collisions at center-of-mass energy (per nucleon pair) $\sqrt{s}$ ( $\sqrt{{s}_{\mathrm{N}\mathrm{N}}}$ ) = 5-13 TeV are described by a two-component statistical model which is based on the Tsallis statistics and inverse power-law. The experimental data measured by the LHCb Collaboration at the Large Hadron Collider (LHC) are well fitted by the model results. The related parameters are obtained and the dependence of parameters on rapidity is analyzed.

Published in: Advances in High Energy Physics 2019 (2019) 6739315