Naslov
Scaling Properties of Hyperon Production in Au+Au Collisions at √sNN =200 GeV

Autori
Adams, J. ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Zuo, J.X.

Izvornik
Physical Review Letters (0031-9007) 98 (2007); 62301-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
scaling; hyperon; STAR

Sažetak
We present the scaling properties of Λ, Ξ, and Ω in midrapidity Au+Au collisions at the Brookhaven National Laboratory Relativistic Heavy Ion Collider at sNN‾‾‾‾√=200  GeV. The yield of multistrange baryons per participant nucleon increases from peripheral to central collisions more rapidly than that of Λ, indicating an increase of the strange-quark density of the matter produced. The strange phase- space occupancy factor γs approaches unity for the most central collisions. Moreover, the nuclear modification factors of p, Λ, and Ξ are consistent with each other for 2<pT<5  GeV/c in agreement with a scenario of hadron formation from constituent quark degrees of freedom.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
STAR Collaboration.

POVEZANOST RADA