Azimuthal anisotropy of K0s and Λ + Λ¯¯¯ production at mid-rapidity from Au+Au collisions at √(sNN) = 130 GeV.
Journal Article
·
· Physical Review Letters
We report STAR results on the azimuthal anisotropy parameter v₂ for strange particles K0s, Λ, and Λ⁻ at midrapidity in Au+Au collisions at √(sNN)=130 GeV at the Relativistic Heavy Ion Collider. The value of v₂ as a function of transverse momentum, pt, of the produced particle and collision centrality is presented for both particles up to pt~3.0 GeV/c. A strong pt dependence in v₂ is observed up to 2.0 GeV/c. The v₂ measurement is compared with hydrodynamic model calculations. The physics implications of the pt integrated v₂ magnitude as a function of particle mass are also discussed.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of Nuclear Physics (US)
- Contributing Organization:
- STAR Collaboration
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 807430
- Report Number(s):
- LBNL-51722; PRLTAO; R&D Project: NRNC; B& R KB0201022; TRN: US0301832
- Journal Information:
- Physical Review Letters, Vol. 89, Issue 13; Other Information: Journal Publication Date: Sep. 23, 2002; PBD: 13 May 2002; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
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