https://doi.org/10.1140/epjc/s2005-02269-x
Theoretical Physics
Open and hidden charm production in pA collisions
Nuclear Theory Group, Physics Department, Brookhaven National Laboratory, NY 11973-5000, Upton, USA
* e-mail: tuchin@quark.phy.bnl.gov
Received:
17
March
2005
Published online:
28
June
2005
We discuss the production of charmed mesons and in p(d)A collisions at high energies. We argue that when the saturation scale Q
s characterizing the parton density in a nucleus exceeds the quark mass m, the naive perturbation theory breaks down. Consequently, we calculate the process of heavy quark production in both open and hidden channels in the framework of the parton saturation model (color glass condensate). We demonstrate that at RHIC such a description is in agreement with experimental data on charm production.
© Springer-Verlag, 2005