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Article overview
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Flavor ordering of elliptic flows at high transverse momentum | | Zi-wei Lin
; C.M. Ko
; | | Date: |
4 Jul 2002 | | Journal: | Phys.Rev.Lett. 89 (2002) 202302 | | Subject: | nucl-th | | Abstract: | Based on the quark coalescence model for the parton-to-hadron phase transition in ultra-relativistic heavy ion collisions, we relate the elliptic flow ($v_2$) of high $pt$ hadrons to that of high $pt$ quarks. For high $pt$ hadrons produced from an isospin symmetric and quark-antiquark symmetric partonic matter, magnitudes of their elliptic flows follow a flavor ordering as $(v_{2,pi}=v_{2,N}) > (v_{2,Lambda}=v_{2,Sigma}) > v_{2,K} > v_{2,Xi} > (v_{2,phi}=v_{2,Omega})$ if strange quarks have a smaller elliptic flow than light quarks. The elliptic flows of high $pt$ hadrons further follow a simple quark counting rule if strange quarks and light quarks have same high $pt$ spectrum and coalescence probability. | | Source: | arXiv, nucl-th/0207014 | | Services: | Forum | Review | PDF | Favorites | |
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