Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-05-22
Mod.Phys.Lett.A21:2649-2662,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, LaTeX
Scientific paper
10.1142/S0217732306021815
We develop a color bosonization approach to treatment of QCD gauge field (''gluons'') at low energies in order to derive an effective color action of QCD taking into account the quark chiral anomaly in the case of SU(2) color.. We have found that there exists such a region in the chiral sector of color space, where a gauge field coincides with of chirally rotated vector field, while an induced axial vector field disappears. In this region, the unit color vector of chiral field plays a defining role, and a gauge field is parametrized in terms of chiral parameters, so that no additional degrees of freedom are introduced by the chiral field. A QCD gauge field decomposition in color bosonization is a sum of a chirally rotated gauge field and an induced axial-vector field expressed in terms of gluonic variables. An induced axial-vector field defines the chiral color anomaly and an effective color action of QCD. This action admits existence of a gauge invariant d=2 condensate of induced axial-vector field and mass.
Novozhilov Victor
Novozhilov Yuri
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