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Azimuthal anisotropy of K-S(0) and Lambda+(Lambda)over-bar production at midrapidity from Au plus Au collisions at root s(NN)=130 GeV

Adler, C; Ahammed, Z; Allgower, C; Amonett, J; Anderson, BD; Anderson, M; Averichev, GS; ... STAR Collaboration, .; + view all (2002) Azimuthal anisotropy of K-S(0) and Lambda+(Lambda)over-bar production at midrapidity from Au plus Au collisions at root s(NN)=130 GeV. PHYS REV LETT , 89 (13) , Article 132301. 10.1103/PhysRevLett.89.132301. Green open access

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Abstract

We report STAR results on the azimuthal anisotropy parameter v(2) for strange particles K-S(0), Lambda, and (&ULambda;) 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 function of transverse momentum, p(t), of the produced particle and collision centrality is presented for both particles up to p(t)similar to3.0 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 discussed.

Type: Article
Title: Azimuthal anisotropy of K-S(0) and Lambda+(Lambda)over-bar production at midrapidity from Au plus Au collisions at root s(NN)=130 GeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.89.132301
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.89.132301
Language: English
Keywords: HEAVY-ION COLLISIONS, RELATIVISTIC NUCLEAR COLLISIONS, GEV AU+AU COLLISIONS, ELLIPTIC FLOW, COLLECTIVE FLOW, STAR TPC, PHASE-TRANSITION, LAMBDA-HYPERONS, PB COLLISIONS, K+ MESONS
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1324842
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