A study of elliptic flows in a quark combination model

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 hadron...

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Bibliographic Details
Published inarXiv.org
Main Authors Yao, Tao, Qu-bing Xie, Feng-lan, Shao
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 10.09.2006
Subjects
Hadrons
Pions
Quarks
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Summary: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.
ISSN:2331-8422