A note on fermions in holographic QCD

Details A note on fermions in holographic QCD A note on fermions in holographic QCD

2007-06-15

arxiv.org/abs/0706.2253v2

JHEP 0708:065,2007

Physics

High Energy Physics

High Energy Physics - Theory

21+1 pp, 1 figure; v2: typos corrected, refs. added

Scientific paper

10.1088/1126-6708/2007/08/065

We study the fermionic sector of a probe D8-brane in the supergravity background made of D4-branes compactified on a circle with supersymmetry broken explicitly by the boundary conditions. At low energies the dual field theory is effectively four-dimensional and has proved surprisingly successful in recovering qualitative and quantitative properties of QCD. We investigate fluctuations of the fermionic fields on the probe D8-brane and interpret these as mesinos (fermionic superpartners of mesons). We demonstrate that the masses of these modes are comparable to meson masses and show that their interactions with ordinary mesons are not suppressed.

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