Production of phi and Omega at RHIC in the Recombination Model

Details Production of phi and Omega at RHIC in the Recombination Model Production of phi and Omega at RHIC in the Recombination Model

2004-06-22

arxiv.org/abs/nucl-th/0406072v1

Physics

Nuclear Physics

Nuclear Theory

5 pages in RevTeX including 3 figures in eps

Scientific paper

The recombination model is applied to the production of phi and Omega at all pt in central Au+Au collisions. Since no light quarks are involved in the hadronization, those hidden-strange particles present a clean slate for the study of the role of strange quarks in large-pt physics. We find that shower s quarks have negligible effect for pt<6 GeV/c, in which range the thermal s quarks make the dominant contributions to the formation of phi and Omega. We show that the same effective temperature of the s quarks is responsible for the shape of the spectra of both phi and Omega. We predict that the ratio of Omega to phi will show a peak at pt \approx 6 GeV/c due to the effect of the hard partons. We also give reasons on the basis of the pt dependence that phi cannot be formed by means of K+K- coalescence.

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