Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions

Details Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions

2012-01-04

arxiv.org/abs/1201.0818v1

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

Azimuthal distributions of radial (transverse) momentum, mean radial momentum, and mean radial velocity of final state particles are suggested for relativistic heavy ion collisions. Using transport model AMPT with string melting, these distributions for Au + Au collisions at 200 GeV are presented and studied. It is demonstrated that the distribution of total radial momentum is more sensitive to the anisotropic expansion, as the anisotropies of final state particles and their associated transverse momentums are both counted in the measure. The mean radial velocity distribution is compared with the radial {\deg}ow velocity. The thermal motion contributes an isotropic constant to mean radial velocity.

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