ICPAQGP-2010

5-10 December 2010

6th International Conference on Physics and Astrophysics of Quark Gluon Plasma (ICPAQGP 2010)

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Soft gluon multiplicity distribution revisited

Content:

The energy loss of high energy partons propagating through a thermalized system of quarks and gluons created in heavy ion collisions at relativistic energies has been measured through nuclear suppression factors at Relativistic Heavy Ion Collider (RHIC) energy. The two most important mechanisms for the energy loss are radiative and collisional processes. Therefore, it is very important to understand and theoretically improve the calculations of partonic energy loss in thermal medium. In this spirit soft gluon radiation from partonic interaction of the type: $2\,\rightarrow\, 2\,$ + gluon has been revisited and a correction term to the widely used Gunion-Bertsch (GB) formula is obtained. It is observed that the correction to the gluon spectrum is appreciable for low temperature domain. The effect of this correction term in the energy loss mechanism has been studied and its consequence on $R_{AA}$ and $v_2$ has been discussed. The $ \eta/s $ has also been estimated using the correction term.

Id:

Place:

Room: Main Auditorium

Starting date:

--not yet scheduled--

Duration:

00'

Primary Authors:

Mr. DAS, SANTOSH KUMAR (VARIABLE ENERGY CYCLOTRON CENTRE)

Co-Authors:

Dr. ALAM, Jan-e (VARIABLE ENERGY CYCLOTRON CENTRE)

Presenters:

Mr. DAS, SANTOSH KUMAR