Directed Flow of Light Nuclei in Au+Au Collisions at AGS Energies

Abstract

Directed flow of deuterons, tritons, ${}^3$He, and ${}^4$He is studied in Au+Au collisions at a beam momentum of about 10.8 $A$ GeV/c. Flow of all particles is analyzed as a function of transverse momentum for different centralities of the collision. The directed flow signal, $v_1(p_t)$, is found to increase with particle mass. This mass dependence is strongest in the projectile rapidity region.

arXiv commentLaTex, 14 pages, 4 figures. Submitted to Phys. Rev. C

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