Alternative large Nc baryons and holography

Details Alternative large Nc baryons and holography Alternative large Nc baryons and holography

2009-03-31

arxiv.org/abs/0904.0008v2

Phys.Rev.D79:125021,2009

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 1 figure, references added

Scientific paper

10.1103/PhysRevD.79.125021

In gauge theories in the limit of a large number Nc of colors, baryons are usually described as heavy solitonic objects with mass of order Nc. We discuss an alternative large Nc description both directly in the field theory as well as using holography. In this alternative large Nc limit at least some of the baryons behave like mesons, that is they stay light even at large Nc and their interactions vanish in that limit. For Nc=3 these alternative large Nc baryons are equivalent to the standard baryons. In the holographic description it is manifest that the Regge slopes of mesons and alternative baryons are degenerate.

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