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Parton; equilibration; baryon number; chemical potential; flavour change.

Flavour equilibration for a thermally equilibrated but chemically non-equilibrated quark-gluon plasma is presented. Flavour equilibration is studied enforcing baryon number conservation. In addition to the usual processes like single additional gluon production $gg \rightleftharpoons ggg$ and its reverse and quark–antiquark pair production by gluon pair fusion $gg \rightleftharpoons q_{i}q_{i}^{-}$ and reverse thereof, processes like quark-flavour interchanging $q_{i}q_{i}^{-} \rightleftharpoons q_{j}q_{j}^{-}$ is also considered. The degree of equilibration is studied comparatively for various reactions/constraints that are being considered.

Abhijit Sen¹

1. Department of Physics, Suri Vidyasagar College, Suri 731 101, India

Published

December 2009

Manuscript received

12 March 2008

Manuscript revised

22 June 2009

Accepted

22 June 2009