HBT Parameters and Space-Momentum Correlations in Relativistic Heavy-Ion Collisions
ZHANG Jing-Bo1,3, HUO Lei1,2, ZHANG Wei-Ning1, LI Xin-Hua3, XU Nu3, LIU Yi-Ming1
1Department of Physics, Harbin Institute of Technology, Harbin 150001
2Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
3Nuclear Science Division, Lawrence Berkeley National Laboratory, CA 94720, USA
HBT Parameters and Space-Momentum Correlations in Relativistic Heavy-Ion Collisions
1Department of Physics, Harbin Institute of Technology, Harbin 150001
2Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
3Nuclear Science Division, Lawrence Berkeley National Laboratory, CA 94720, USA
Abstract： Using the relativistic quantum molecular dynamics approach,
with a correlation after-burner, the physics of transverse momentum dependence of the Hanbury-Brown and Twiss parameters is studied for Au + Au, Si + Si and p + p collisions at the center-of-mass energy √s = 200AGeV. The results indicate that the space-momentum correlations would affect such dependence in both heavy-ion and elementary collisions. The size parameters as a function of the transverse mass mt are sensitive to the degree of space-momentum correlations.
(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))
2001, Vol. 18 
