Baryon as dyonic instanton

Abstract

We discuss the baryon in the holographic QCD framework and focus on the role of the bifundamental scalar field, realizing chiral symmetry breaking. We suggest the interpretation of a baryon as a dyonic instanton within the Atiyah-Manton-like approach for the flavor gauge group in the peculiar cylindrical ansatz in five-dimensional theory. Our approach provides the new mechanism of the stabilization of the baryon size.

Comments: 19 pages, 2 figures, v2: version to be published in PRD. Introduction improved, references added, typos corrected