Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-09-08
Phys.Lett. B445 (1998) 223-231
Physics
High Energy Physics
High Energy Physics - Phenomenology
One figure is added
Scientific paper
10.1016/S0370-2693(98)01440-3
In relativistic heavy ion collisions, also the bremsstrahlung of gluons in the fragmentation regions of the nuclei suppresses the produced charmonium states. In the energy range of the SPS, the radiation of semi-hard gluons occurs in the Bethe-Heitler regime and the density of gluons and therefore the suppression goes like $(AB)^{1\over3}$, where $A$ and $B$ are the nucleon numbers of the projectile and target nuclei. In contrast, the suppression via collisions with nucleons is proportional to $(A^{1\over3} + B^{1\over3})$. Parameter free perturbative QCD calculations are in a good agreement with the data on $J/\Psi$ and $\Psi'$ suppression in heavy ion collisions at SPS CERN. At higher energies (RHIC, LHC) the number of gluons which are able to break-up the charmonium substantially decreases and the additional suppression is expected to vanish.
Huefner Joerg
Kopeliovich Boris Z.
No associations
LandOfFree
Charmonium Suppression in Heavy Ion Collisions by Prompt Gluons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Charmonium Suppression in Heavy Ion Collisions by Prompt Gluons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charmonium Suppression in Heavy Ion Collisions by Prompt Gluons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-329572