QCD string in mesons and baryons

Details QCD string in mesons and baryons QCD string in mesons and baryons

2000-10-11

arxiv.org/abs/hep-ph/0010114v1

Phys.Atom.Nucl. 64 (2001) 107-119; Yad.Fiz. 64 (2001) 110-122

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX2e, 13 pages, 20 GIF images, to appear in Yad.Phys

Scientific paper

10.1134/1.1344949

Field distributions generated by static quark-antiquark and QQQ sources are calculated analytically in the framework of Gaussian (bilocal) approximation of Field Correlator Method (FCM). Special attention is paid to the QQQ system and asymmetric configurations are also studied. In both quark-antiquark and QQQ cases the string consists mainly of longitudinal color electric field. Transverse color electric field contribution is shown to be less then 3%. Baryon string has an Y-like shape with a deep well at the string junction position. Field distributions for quark-diquark and for three quarks on one line are considered. The interaction potential for quarks forming an equilateral triangle is calculated. The material of the paper is illustrated by 24 3D colored pictures.

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