Quark number scaling ofv2in transverse kinetic energy and its implications for coalescence models | Zendy

J. Jia | Zendy; Chun Zhang | Zendy

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Quark number scaling ofv2in transverse kinetic energy and its implications for coalescence models

Author(s) -

J. Jia,

Chun Zhang

Publication year - 2007

Publication title -

physical review c

Language(s) - English

Resource type - Journals

eISSN - 1089-490X

pISSN - 0556-2813

DOI - 10.1103/physrevc.75.031901

Subject(s) - hadronization , physics , coalescence (physics) , kinetic energy , scaling , particle physics , quark , parton , nuclear physics , geometry , quantum mechanics , mathematics , astrobiology

We find that a simple extension of the coalescence model is sufficient toincorporate the perfect quark number scaling behavior of the elliptic flow intransverse kinetic energy, recently discovered by the PHENIX Collaboration. Theflavor dependence of the elliptic flow can be consistently described in the lowand intermediate $p_T$ if the transverse kinetic energy is conserved in the$2\to1$ or $3\to1$ parton coalescence process at the hadronization. Thussuggesting the quark coalescence as a possible hadronization mechanism at low$p_T$ as well.Comment: 4 pages and 3 figures, accepted by PRC rapid comm(Added one figure

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