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Parton coalescence and antiproton/pion anomaly at RHIC | | V. Greco
; C. M. Ko
; P. Lévai
; | | Date: |
28 Dec 2002 | | Journal: | Phys.Rev.Lett. 90 (2003) 202302 | | Subject: | nucl-th nucl-ex | | Abstract: | Coalescence of minijet partons with the partons from the quark-gluon plasma formed in relativistic heavy ion collisions is suggested as the mechanism for production of hadrons with intermediate transverse momentum. The resulting enhanced antiproton and pion yields at intermediate transverse momentum gives a plausible explanation for the observed large antiproton to pion ratio. With further increasing momentum, the ratio is predicted to decrease and approach the small value given by independent fragmentations of minijet partons after their energy loss in the quark-gluon plasma. | | Source: | arXiv, nucl-th/0301093 | | Services: | Forum | Review | PDF | Favorites | |
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