Chiral Dynamics of Baryons from String Theory

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dc.creatorHong, Deog Ki
dc.creatorRho, Mannque
dc.creatorYee, Ho-Ung
dc.creatorYi, Piljin
dc.date2007-01-30
dc.date2007-02-08
dc.date.accessioned2026-07-07T11:03:11Z
dc.date.available2026-07-07T11:03:11Z
dc.descriptionWe study baryons in an AdS/CFT model of QCD by Sakai and Sugimoto, realized as small instantons with fundamental string hairs. We introduce an effective field theory of the baryons in the five-dimensional setting, and show that the instanton interpretation implies a particular magnetic coupling. Dimensional reduction to four dimensions reproduces the usual chiral effective action, and in particular we estimate the axial coupling $g_A$ between baryons and pions and the magnetic dipole moments, both of which are proportional to $N_c$. We extrapolate to finite $N_c$ and discuss subleading corrections.
dc.description4 pages, typos fixed, discussions reworded to clarify a unit, a reference updated
dc.identifierhttps://arxiv.org/abs/hep-th/0701276
dc.identifierhttp://arxiv.org/abs/hep-th/0701276
dc.identifierPhys.Rev.D76:061901,2007
dc.identifierdoi:10.1103/PhysRevD.76.061901
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188502
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleChiral Dynamics of Baryons from String Theory
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