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Scaling properties of hyperon production in Au+Au collisions at square root [sNN]=200 GeV.
- Source :
-
Physical review letters [Phys Rev Lett] 2007 Feb 09; Vol. 98 (6), pp. 062301. Date of Electronic Publication: 2007 Feb 05. - Publication Year :
- 2007
-
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 sqrt[s&#95;{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&#95;{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&#95;{T}<5 GeV/c in agreement with a scenario of hadron formation from constituent quark degrees of freedom.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 98
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 17358934
- Full Text :
- https://doi.org/10.1103/PhysRevLett.98.062301