Abstract
We study the production of heavy quarks, charm at BNL-RHIC ( = 200 GeV/nucleon) and CERN-LHC ( = 5.5 TeV/nucleon) and bottom at CERN-LHC, from heavy ions colliding at relativistic energies. We consider initial fusion of gluons (and quark–anti-quark annihilation), pre-thermal parton interactions and interactions in a thermalized quark–gluon plasma. We also consider free-streaming partons as another extreme and compare the results with those from a thermalized plasma of partons. The pre-thermal contribution is calculated by considering the interaction among partons having large transverse momenta (jet–partons) after the initial interaction and from the passage of these partons through a thermalized quark–gluon plasma. Charm production from pre-thermal processes is found to be comparable to that from prompt (initial) interactions at LHC. It is suggested that this may have important implications for the study of the nuclear modification factor, RAA, as well as for the back-to-back correlation of heavy quarks and the production of dileptons having a large mass.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Physics G: Nuclear and Particle Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
