On heavy-quarkonia suppression by final-state multiple scatterings in most central Au+Au collisions at RHIC

Understand

We study heavy-quarkonia suppression under final-state multiple scatterings in most central Au~+~Au collisions at RHIC energy.

• We first calculate the survival probability of a heavy quarkonium under multiple scattering in Bjorken's expanding QGP at large $N_c$.
• Then, we calculate the rapidity dependence of the nuclear modification factor $R_{AA}$ for heavy-quarkonia production by considering final-state multiple scatterings in most central Au~+~Au collisions in a simplified model.
• In our formula a constant $P_0$ is also introduced to estimate the possible cold nuclear effects.