Confinement and chiral symmetry breaking in heavy-light quark systems

Details Confinement and chiral symmetry breaking in heavy-light quark systems Confinement and chiral symmetry breaking in heavy-light quark systems

1998-07-22

arxiv.org/abs/hep-ph/9807460v1

Phys.Lett. B442 (1998) 349-358

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 2 figures, elsart.sty

Scientific paper

10.1016/S0370-2693(98)01220-9

Assuming a Gaussian approximation for the QCD gluodynamics, all the nonperturbative physics can be encoded into two parameters: the gluon correlation length $T_g$ and the gluon condensate $G_2$. These parameters are sufficient in order to describe the heavy-heavy quark nonperturbative interaction. In this work we adopt the same framework in order to study heavy-light bound states in the non-recoil limit. Spontaneous chiral symmetry breaking and a confining chiral non-invariant interaction emerge quite naturally. The gap equation is solved and discussed. In particular a relation between the light quark condensate and $T_g$ is derived. The energy spectrum for the bound state equation is evaluated and commented.

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