Event anisotropy in 4.2A GeV/c C+C collisions

Details Event anisotropy in 4.2A GeV/c C+C collisions Event anisotropy in 4.2A GeV/c C+C collisions

2001-06-17

arxiv.org/abs/nucl-th/0106037v2

J.Phys.G27:183-189,2001

Physics

Nuclear Physics

Nuclear Theory

7 pages, 3 figures, TeX file changed from double to single-spacing

Scientific paper

10.1088/0954-3899/27/2/304

The directed and elliptic flow of protons and negative pions in 4.2A GeV/c C+C collisions is studied using the Fourier analysis of azimuthal distributions. It is found that the protons exhibit pronounced directed flow, while the flow of pions is either non existent or too weak to be detected experimentally. Also, it is found that in the entire rapidity interval the elliptic flow is very small if not zero. These results are confirmed by the Quark-Gluon-String Model (QGSM) and the relativistic transport model (ART 1.0), except that these models predict very weak antiflow of pions. The more detailed comparison with the QGSM suggests that the decay of resonances and rescattering of secondaries dominantly determine the proton and negative pion flow at this energy.

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