Seminar in Hadronic Physics

Collisional Energy Loss - A welcoming component for jet quenching phenomenon in heavy-ion collisions

Munshi Golam Mustafa

Theory Division
Saha Institute of Nuclear Physics

Before we took up these studies, the dominance of the radiative energy loss for the phenomenon of jet quenching in heavy-ion collision seemed to be well established in the heavy-ion community. Within a very simple approach we reconsidered, in 2003, the role of collisional partonic quenching and showed that it could be significant and cannot just be overlooked as it were done in the literature. However, only recently, after publication of new data on the nuclear suppression factor in RHIC BNL, this simple idea has gained wider interest.

At this point, the continuous up-gradation from RHIC BNL and LHC CERN will be operational soon, one indeed needs to improve our simple approach in different possible ways, which would definitely be a very desirable to verify the importance of the collisional energy loss. I would like to discuss our approach and its limitations. How can it be improved? Also this can be used to study the photon tagged jet for which we have some preliminary results that I intend to discuss.