An exceptional sector for F-theory GUTs

Journal Article · Sat Jan 15 00:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.026006· OSTI ID:21504003

Heckman, Jonathan J ^[1]; Vafa, Cumrun ^[2]

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1. School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States)
2. Jefferson Physical Laboratory, Harvard University, Cambridge, Massachusetts 02138 (United States)

D3-branes are often a necessary ingredient in global compactifications of F-theory. In minimal realizations of flavor hierarchies in F-theory GUT models, suitable fluxes are turned on, which in turn attract D3-branes to the Yukawa points. Of particular importance are ''E-type'' Yukawa points, as they are required to realize a large top quark mass. In this paper we study the worldvolume theory of a D3-brane probing such an E-point. D3-brane probes of isolated exceptional singularities lead to strongly coupled N=2 conformal field theories (CFTs) of the type found by Minahan and Nemeschansky. We show that the local data of an E-point probe theory determine an N=1 deformation of the original N=2 theory which couples this strongly interacting CFT to a free hypermultiplet. Monodromy in the seven-brane configuration translates to a novel class of deformations of the CFT. We study how the probe theory couples to the standard model, determining the most relevant F-term couplings, the effect of the probe on the running of the standard model gauge couplings, as well as possible sources of kinetic mixing with the standard mModel.

• OSTI ID: 21504003
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 2; Other Information: DOI: 10.1103/PhysRevD.83.026006; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPACTIFICATION
CONFIGURATION
CONFORMAL INVARIANCE
COUPLING
D-BRANES
DEFORMATION
FIELD THEORIES
FLAVOR MODEL
MASS
MIXING
QUANTUM FIELD THEORY
SIMULATION
SINGULARITY
STANDARD MODEL
T QUARKS
YUKAWA POTENTIAL
BRANES
COMPOSITE MODELS
ELEMENTARY PARTICLES
FERMIONS
GRAND UNIFIED THEORY
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
NUCLEAR POTENTIAL
PARTICLE MODELS
POSTULATED PARTICLES
POTENTIALS
QUARK MODEL
QUARKS
TOP PARTICLES
UNIFIED GAUGE MODELS