Azimuthal anisotropy of K-S(O) and Lambda+(Lambda)over-bar production at midrapidity from Au plus Au collisions at root s(NN)=130 GeV

0185571 - UJF-V 20020081 US eng J - Článek v odborném periodiku
Adler, C. - Ahammed, Z. - Allgower, C. - Amonett, J. - Anderson, B. D. - Anderson, M. - Chaloupka, Petr - Šumbera, Michal - Zborovský, Imrich - Zhang, H.
Azimuthal anisotropy of K-S(O) and Lambda+(Lambda)over-bar production at midrapidity from Au plus Au collisions at root s(NN)=130 GeV.
Physical Review Letters. Roč. 89, č. 13 (2002), s. 2301. ISSN 0031-9007. E-ISSN 1079-7114
Grant CEP: GA MŠMT ME 475
Klíčová slova: heavy-ion collisions * ralativistic nuclear collisions * GeV Au+Au
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 7.323, rok: 2002

We report STAR results on the azimuthal anisotropy parameter v(2) for strange particles K-S(O), Lambda, and (anti Lambda) over bar at midrapidity in Au+Au collisions at roots(NN)=130 GeV at the Relativistic Heavy Ion Collider. The value of v(2) as a funciton of transverse momentum, p(t), of the produced particle and collison centrality is presented for both particles up to p(t)similar to 3.0 GeV/c. A strong p(t) dependence in v(2) is observed up to 2.0 GeV/c. The v(2) measurement is compared with hydrodynamic model calculations. The physics implications of the p(t) integrated v(2) magnitude as a function of particle mass are also discused.
Trvalý link: http://hdl.handle.net/11104/0081961