Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-10-07
JETP Lett. 82 (2005) 557-561; Pisma Zh.Eksp.Teor.Fiz. 82 (2005) 633-637
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX2e, 5 pages, uses jetpl.cls (included), to appear in JETP Lett
Scientific paper
10.1134/1.2161280
We address the question of the Lorentz nature of the effective long-range interquark interaction generated by the QCD string with quarks at the ends. Studying the Dyson-Schwinger equation for a heavy-light quark-antiquark system, we demonstrate explicitly how a Lorentz-scalar interaction appears in the Diraclike equation for the light quark, as a consequence of chiral symmetry breaking. We argue that the effective interquark interaction in the Hamiltonian of the QCD string with quarks at the ends stems from this effective scalar interaction.
Nefediev A. V.
Simonov Yu. A.
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