Hadron Production And Collective Flow In Simulated Events Of Au+Au Collisions At200GeV

Relativistic nucleus-nucleus collisions offer the unique possibility to producehadronic and even partonic matter at high temperatures and densities in the laboratory.There are various experimental observables which give access to the physics of anuclear collision. Newly produced hadrons, which are the subject of this paper,dominate the final state at high energies. A multiphase transport model is used tosimulate the production of particles in RHIC energy. The rapidity distribution,transverse momentum and ratio of particle multiplicities are discussed in this paper.Furthermore, analysis with collective flow and comparison with the experimental dataare done.It was found that analysis based on rapidity or pseudorapidity doesn’t vary much, atleast not change the trend. The kaons show some differences in the transversemomentum with pions due to the difference in mechanisms of the production. We alsofound that the flow signal changes with the rapidity, the impact parameter and theparticle identification. Our results that the default version does better in large rapidityand large centrality suggest strings remain dominant at large rapidities and largecentrality whereas the partonic matter is formed during early stage only aroundmidrapidity and in central or semi-central collisions. However, further study is needed,especially in experiment.