12-15 April 2016
BNL Physics Building
US/Eastern timezone

Measurements of direct-photon and neutral pions azimuthal anisotropy at RHIC and LHC

14 Apr 2016, 11:30
30m
Large Seminar Room (BNL Physics Building)

Large Seminar Room

BNL Physics Building

Speaker

Dr Ahmed Hamed (University of Mississippi/Texas A and M University/HCT)

Description

Many observations have indicated that the fragmentation functions in nucleus-nucleus collisions are softened compared to that in proton-proton collisions. Different theoretical models have been proposed in order to describe the observed phenomena. For a deeper insight into the underlying physics and better constraints for the extracted parameters of the medium formed in nucleus-nucleus collisions, a calibrated probe is needed. Direct photons act as such probes, providing experimental tools to explore energy loss of hard-scattered patrons. We report direct-photon and neutral pions azimuthal anisotropy as a function of transverse momentum at mid-rapidity with event plane reconstructed from particles at forward rapidity in Au+Au collisions measured using STAR detector. We also show the measured direct-photon and neutral pions azimuthal anisotropy at RHIC and LHC. The results will be discussed in the scope of current theoretical models.

Primary author

Dr Ahmed Hamed (University of Mississippi/Texas A and M University/HCT)

Presentation Materials