Ayut Limphirat, Dai-Mei Zhou, Yu-Liang Yan, Bao-Guo Dong, Chinorat Kobdaj, Yupeng Yan, Laszlo Csernai, Ben-Hao Sa
December 4, 2012
PACIAE 2.0, a parton and hadron cascade model, is employed to investigate the dependence of the moments of net proton event distributions on reaction energies varying from RHIC to LHC energy in p + p collisions. It is found that net proton moments and moment products are sensitive to the collision energy except the moment product kσ 2 which is almost independent of the collision energy. The PACIAE results are in line with experimental data.