Eur. Phys. J. C (2005) 43: 63-66
https://doi.org/10.1140/epjc/s2005-02189-9

Theoretical Physics

Static quark anti-quark free and internal energy in two-flavor QCD

¹ Fakultät für Physik, Universität Bielefeld, 33615, Bielefeld, Germany
² Physics Department, Brookhaven National Laboratory, NY 11973, Upton, USA

^* e-mail: okacz@physik.uni-bielefeld.de

Received: 23 February 2005
Published online: 12 April 2005

Abstract

We study the change in free and internal energy due to the presence of a heavy quark anti-quark pair in a thermal heat bath in QCD with two flavors of staggered quarks at finite temperature. We discuss string breaking below as well as screening above the transition. Similarities and differences to the quenched case are discussed.