Nuclear modification of heavy quark fragmentation function and J/psi production in ultrarelativistic heavy ion collisions

Details Nuclear modification of heavy quark fragmentation function and J/psi production in ultrarelativistic heavy ion collisions Nuclear modification of heavy quark fragmentation function and J/psi production in ultrarelativistic heavy ion collisions

Publishing date

2002-05-23

URL

arxiv.org/abs/nucl-th/0205064v1

Journals

Phys.Lett.B546:63-67,2002

Science

Physics

Field

Nuclear Physics

SubField

Nuclear Theory

Type

Scientific paper

Digital Object Identifier

10.1016/S0370-2693(02)02673-4

Abstract

In ultrarelativistic heavy ion collisions, charm quark fragmentation is modified due to the melting of strings inside the high density partonic matter. D mesons produced in hadronization can further produce J/psi particles. Using a multiphase transport model, we investigate the effect on the rapidity distribution of the produced J/psi particles with two different charm quark fragmentation functions. It is shown that the J/psi rapidity distribution is sensitive to the nuclear modification of charm quark fragmentation and thus is a good indicator of the onset of string melting and the production of deconfined partonic matter.

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