Production of strange particles at RHIC via quark recombination

摘要

The recombination model is applied to the production of K, Lambda, phi, and Omega at all p(T) in central Au+Au collisions. The thermal-shower component of the recombination is found to be important for K and Lambda in the intermediate p(T) region. For phi and Omega, the pure thermal recombination dominates up to 8 GeV/c. The contribution from shower strange quarks to multi-strange particle spectra can be seen from the Omega/Phi ratio.