Light front approach to correlations in hot quark matter

Abstract

We investigate two-quark correlations in hot and dense quark matter. To this end we use the light front field theory extended to finite temperature $T$ and chemical potential $μ$. Therefore it is necessary to develop quantum statistics formulated on the light front plane. As a test case for light front quantization at finite $T$ and $μ$ we consider the NJL model. The solution of the in-medium gap equation leads to a constituent quark mass which depends on $T$ and $μ$. Two-quark systems are considered in the pionic and diquark channel. We compute the masses of the two-body system using a $T$-matrix approach.

Prepared for the Quark Matter Conference 2005 in Budapest, Hungary, 4-9 Aug. 2005, 4 pages, 2 figures; two abbreviations explained and some typos corrected