Net baryon density in Au+Au collisions at the Relativistic Heavy Ion   Collider
  We calculate the net baryon rapidity distribution in Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC) in the framework of the Parton Cascade Model (PCM). Parton rescattering and fragmentation leads to a substantial increase in the net baryon density at mid-rapidity over the density produced by initial primary parton-parton scatterings. The PCM is able to describe the measured net baryon density at RHIC. 
Steffen A. Bass, Berndt M\"uller, Dinesh K. Srivastava