A study of elliptic flows in a quark combination model

Details A study of elliptic flows in a quark combination model A study of elliptic flows in a quark combination model

2006-06-19

arxiv.org/abs/nucl-th/0606033v2

Published in Chinese Physics C 32(05), 356-362, 2008

Physics

Nuclear Physics

Nuclear Theory

In RevTex 4, 8 pages, 5 figures, references added

Scientific paper

We carry out a detail study of elliptic flows in Au-Au collisions at 200 AGeV in a quark combination model. We find that elliptic flow data for a variety of hadrons can be well reproduced except pions if constituent quarks with equal parallel transverse momenta combine into initially produced hadrons. In a combination mechanism where initial hadrons are formed by quarks with unequal parallel transverse momenta, theoretical predictions agree with data for all available hadrons including pions. The mass hierarchy at low transverse momenta in elliptic flows can be understood in the same quark combination mechanism as in the mediate range of transverse momenta.

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