Energy Loss and J/ψ Suppression in Relativistic pA and AA Collisions
TAI An1, CHAO Wei-qin1,2, YAO Xia-xia1,3
1Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
2CCAST (World Laboratory), P. O. Box 8730, Beijing 100080
3Departrnent of Physics, Hebei Normal University, Shijiazhuang 050016
Energy Loss and J/ψ Suppression in Relativistic pA and AA Collisions
TAI An1;CHAO Wei-qin1,2;YAO Xia-xia1,3
1Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
2CCAST (World Laboratory), P. O. Box 8730, Beijing 100080
3Departrnent of Physics, Hebei Normal University, Shijiazhuang 050016
Abstract： When the cross section of J/ψ production is considered as varying with the energy of the nucleon-nucleon interaction, the production of J/ψ in pA and A A collisions has been studied by using FRITIOF Model. The calculation shows that the cross section of J/ψ production “per nucleon-nucleon collision” decreases with the increasing mass number and centrality as a consequence of continuous energy loss of the projectile nucleons to the target nucleons in their successive binary nucleon-nucleon collisions. The model predictions have been compared with the experimental data of J/ψ production.
(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
TAI An;CHAO Wei-qin;YAO Xia-xia;. Energy Loss and J/ψ Suppression in Relativistic pA and AA Collisions[J]. 中国物理快报, 1998, 15(12): 874-876.
TAI An, CHAO Wei-qin, YAO Xia-xia,. Energy Loss and J/ψ Suppression in Relativistic pA and AA Collisions. Chin. Phys. Lett., 1998, 15(12): 874-876.
1998, Vol. 15 
