Scaling Properties of Hyperon Production in Au+Au Collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Fri Feb 09 04:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.062301· OSTI ID:20955443

Adams, J; Barannikova, O; Barnby, L S; Blyth, C O; Gaillard, L; Jones, P G; Nelson, J M; Timmins, A R ^[1]; Aggarwal, M M; Bhati, A K; Kumar, A; Sharma, M ^[2]; Ahammed, Z; Chattopadhyay, S; Das, D; Das, S; Dutta Mazumdar, M R; Ganti, M S; Ghosh, P; Mohanty, B ^[3]

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1. University of Birmingham, Birmingham (United Kingdom)
2. Panjab University, Chandigarh 160014 (India)
3. Variable Energy Cyclotron Centre, Kolkata 700064 (India)

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 {radical}(s{sub 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}{sub 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{sub T}<5 GeV/c in agreement with a scenario of hadron formation from constituent quark degrees of freedom.

• OSTI ID: 20955443
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 98; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BNL
BROOKHAVEN RHIC
COLLIDING BEAMS
DEGREES OF FREEDOM
GEV RANGE 100-1000
GOLD 197 BEAMS
GOLD 197 REACTIONS
GOLD 197 TARGET
LAMBDA BARYONS
MATTER
OMEGA BARYONS
PHASE SPACE
S QUARKS
XI BARYONS