Baryonic Effect on XcJ Suppression in Au+Au Collisions at RHIC Energies
PENG Ru1, XU Xiao-Ming2,3, ZHOU Dai-Cui1
1Institute of Particle Physics, Central China Normal University, Wuhan 430079
2Department of Physics, Shanghai University, Shanghai 200436
3Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, PO Box 800204, Shanghai 201800
Baryonic Effect on XcJ Suppression in Au+Au Collisions at RHIC Energies
PENG Ru1;XU Xiao-Ming2,3;ZHOU Dai-Cui1
1Institute of Particle Physics, Central China Normal University, Wuhan 430079
2Department of Physics, Shanghai University, Shanghai 200436
3Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, PO Box 800204, Shanghai 201800
Abstract： We predict that XcJ mesons at low transverse momentum in the central rapidity region are almost dissociated by nucleons and antinucleons in hadronic matter produced in central Au+Au collisions at relativistic high-ion collider (RHIC) energies √sNN = 130 and 200 GeV. In the calculations the nucleon and antinucleon distributions in hadronic matter are results of evolution from their freeze-out distributions which well fit the experimental transverse momentum spectra of proton and antiproton.
(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))
2004, Vol. 21 
