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# Scaling properties of hyperon production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV

Abstract : We present the scaling properties of Lambda, Xi, and Omega in midrapidity Au+Au collisions at the Brookhaven National Laboratory Relativistic Heavy Ion Collider at root s(NN)=200 GeV. The yield of multistrange baryons per participant nucleon increases from peripheral to central collisions more rapidly than that of Lambda, indicating an increase of the strange-quark density of the matter produced. The strange phase-space occupancy factor gamma(s) approaches unity for the most central collisions. Moreover, the nuclear modification factors of p, Lambda, and Xi are consistent with each other for 2 < p(T) < 5 GeV/c in agreement with a scenario of hadron formation from constituent quark degrees of freedom
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http://hal.in2p3.fr/in2p3-00136054
Contributor : Yvette Heyd <>
Submitted on : Monday, March 12, 2007 - 9:59:24 AM
Last modification on : Thursday, August 6, 2020 - 6:03:20 PM

### Citation

J. Adams, M.M. Aggarwal, Z. Ahammed, J. Amonett, B.D. Anderson, et al.. Scaling properties of hyperon production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. Physical Review Letters, American Physical Society, 2007, 98, pp.062301. ⟨10.1103/PhysRevLett.98.062301⟩. ⟨in2p3-00136054⟩

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