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High Energy Physics - Phenomenology

arXiv:hep-ph/9807460 (hep-ph)
[Submitted on 22 Jul 1998]

Title:Confinement and chiral symmetry breaking in heavy-light quark systems

Authors:P. Bicudo, N. Brambilla, E. Ribeiro, A. Vairo
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Abstract: 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.
Comments: 15 pages, 2 figures, this http URL
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: HEPHY-PUB 694/98, UWThPh-1998-31
Cite as: arXiv:hep-ph/9807460
  (or arXiv:hep-ph/9807460v1 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/9807460
Journal reference: Phys.Lett. B442 (1998) 349-358
Related DOI: https://doi.org/10.1016/S0370-2693%2898%2901220-9

Submission history

From: Antonio Vairo [view email]
[v1] Wed, 22 Jul 1998 10:11:57 UTC (41 KB)
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