Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-05-19
Phys.Lett.B693:108-113,2010
Physics
Nuclear Physics
Nuclear Theory
8 pages, 5 figures; v2: new figure added, small changes and fixes, this version published in Phys. Lett. B
Scientific paper
10.1016/j.physletb.2010.08.023
High momentum jets and hadrons can be used as probes for the quark gluon plasma (QGP) formed in nuclear collisions at high energies. We investigate the influence of fluctuations in the fireball on jet quenching observables by comparing propagation of light quarks and gluons through averaged, smooth QGP fireballs with event-by-event jet quenching using realistic inhomogeneous fireballs. We find that the transverse momentum and impact parameter dependence of the nuclear modification factor R_AA can be fit well in an event-by-event quenching scenario within experimental errors. However the transport coefficient qhat extracted from fits to the measured nuclear modification factor R_AA in averaged fireballs underestimates the value from event-by-event calculations by up to 50%. On the other hand, after adjusting qhat to fit R_AA in the event-by-event analysis we find residual deviations in the azimuthal asymmetry v_2 and in two-particle correlations, that provide a possible faint signature for a spatial tomography of the fireball.
Fries Rainer J.
Ramirez Enrique
Rodriguez Ricardo
No associations
LandOfFree
Event-by-Event Jet Quenching does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Event-by-Event Jet Quenching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Event-by-Event Jet Quenching will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-208803