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Elliptic flow of Lambda hyperons in Pb+Pb collisions at 158A GeV
- Source :
- Physical Review C
- Publication Year :
- 2006
- Publisher :
- arXiv, 2006.
-
Abstract
- The elliptic flow of Lambda hyperons has been measured by the NA49 collaboration at the CERN-SPS in semi-central Pb+Pb collisions at 158A GeV. The standard method of correlating particles with the event plane was used. Measurements of v2 near mid-rapidity are reported as a function of rapidity, centrality and transverse momentum. Elliptic flow of Lambda particles increases both with the impact parameter and with the transverse momentum. It is compared with v2 for pions and protons as well as with model calculations. The observation of significant elliptic flow and its mass dependence suggest strong collective behaviour of the matter produced in collisions of heavy nuclei already at the SPS. Scaling properties of elliptic flow of different particle species have been tested at 158A GeV. The limited pT range of the data does not allow for a decisive test of the coalescence model.<br />Comment: 6 pages, 6 figures, submitted to Physical Review C
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
Meson
010308 nuclear & particles physics
Elliptic flow
Hadron
Nuclear Theory
FOS: Physical sciences
Elementary particle
01 natural sciences
Nuclear physics
Baryon
QGP
SPS
Lambda
elliptic flow
0103 physical sciences
High Energy Physics::Experiment
Nuclear Physics - Experiment
Rapidity
Impact parameter
Nuclear Experiment (nucl-ex)
010306 general physics
Nucleon
Nuclear Experiment
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Physical Review C
- Accession number :
- edsair.doi.dedup.....c5cc1f5849dc603e62d40faaad96bafa
- Full Text :
- https://doi.org/10.48550/arxiv.nucl-ex/0606026