Speaker
Dr
Stephane Peigne
(Subatech)
Description
The effects of parton energy loss in cold nuclear matter on heavy-quarkonium suppression in p-A collisions are discussed. It is shown from first principles that at large quarkonium energy E in the nucleus rest frame, the medium-induced energy loss is proportional to E. Using this result, a phenomenological model depending on a single free parameter is able to reproduce J/psi and Upsilon suppression data in a broad xF-range and at various center-of-mass energies. These results strongly support energy loss as the dominant effect in heavy-quarkonium suppression in p--A collisions. Predictions for J/psi and Upsilon suppression in p-Pb collisions at the LHC are presented.
Author
Dr
Stephane Peigne
(Subatech)
