Resolving the plasma profile via differential single inclusive suppression

Details Resolving the plasma profile via differential single inclusive suppression Resolving the plasma profile via differential single inclusive suppression

2006-08-17

arxiv.org/abs/nucl-th/0608043v2

Phys.Rev.C75:021901,2007

Physics

Nuclear Physics

Nuclear Theory

5 pages, 4 figures, RevTex4

Scientific paper

10.1103/PhysRevC.75.021901

The ability of experimental signatures to resolve the spatio-temporal profile of an expanding quark gluon plasma is studied. In particular, the single inclusive suppression of high momentum hadrons versus the centrality of a heavy-ion collision and with respect to the reaction plane in non-central collisions is critically examined. Calculations are performed in the higher twist formalism for the modification of the fragmentation functions. Radically different nuclear geometries are used. The influence of different initial gluon distributions as well as different temporal evolution scenarios on the single inclusive suppression of high momentum pions are outlined. It is demonstrated that the modification versus the reaction plane is quite sensitive to the initial spatial density. Such sensitivity remains even in the presence of a strong elliptic flow.

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