In this article we report our results about quark production and chemical equilibration of quark gluon plasma. Our initial condition corresponds to a classic Yang Mills spectrum, in which only gluon degrees of freedom are considered; the initial condition is then evolved to a quark gluon plasma by means of relativistic transport theory with inelastic processes which permit the conversion of gluons to q (q) over bar pairs. We then compare our results to the ones obtained with a standard Glauber model initialization. We find that regardless of the initial condition the final stage of the system contains an abundant percentage of q (q) over bar pairs; moreover spanning the possible coupling from weak to strong we find that unless the coupling is unrealistically small, both production rate and final percentage of fermions are quite large. (C) 2015 Elsevier B.V. All rights reserved.

Quarks production in the quark-gluon plasma created in relativistic heavy ion collisions

PLUMARI, SALVATORE;GRECO, VINCENZO
2015

Abstract

In this article we report our results about quark production and chemical equilibration of quark gluon plasma. Our initial condition corresponds to a classic Yang Mills spectrum, in which only gluon degrees of freedom are considered; the initial condition is then evolved to a quark gluon plasma by means of relativistic transport theory with inelastic processes which permit the conversion of gluons to q (q) over bar pairs. We then compare our results to the ones obtained with a standard Glauber model initialization. We find that regardless of the initial condition the final stage of the system contains an abundant percentage of q (q) over bar pairs; moreover spanning the possible coupling from weak to strong we find that unless the coupling is unrealistically small, both production rate and final percentage of fermions are quite large. (C) 2015 Elsevier B.V. All rights reserved.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/17322
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