QCD string in mesons and baryons

Field distributions generated by static QQ̄ and QQQ sources are calculated analytically in the framework of Gaussian (bilocal) approximation of Field Correlator Method. Special attention is paid to the QQQ system and asymmetric configurations are also studied. At large quark separations fields form distinct stringlike shape. In both cases QQ̄ and QQQ the string consists mainly of longitudinal color electric field. Transverse color electric component 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.