One-loop Yukawa Couplings in Local Models

Abstract

We calculate the one-loop Yukawa couplings and threshold corrections for supersymmetric local models of branes at singularities in type IIB string theory. We compute the corrections coming both from wavefunction and vertex renormalisation. The former comes in the IR from conventional field theory running and in the UV from threshold corrections that cause it to run from the winding scale associated to the full Calabi-Yau volume. The vertex correction is naively absent as it appears to correspond to superpotential renormalisation. However, we find that while the Wilsonian superpotential is not renormalised there is a physical vertex correction in the 1PI action associated to light particle loops.

37 pages, 3 figures

References in corpus (27)

• GUTs and Exceptional Branes in F-theory - I
• GUTs and Exceptional Branes in F-theory - II: Experimental Predictions
• D-Branes at Singularities : A Bottom-Up Approach to the String Embedding of the Standard Model
• Yukawa couplings in intersecting D-brane models
• Scattering of Gauge, Matter, and Moduli Fields from Intersecting Branes
• String Loop Corrections to Kahler Potentials in Orientifolds
• Brane-Antibrane Kinetic Mixing, Millicharged Particles and SUSY Breaking
• Gauge couplings in four-dimensional Type I string orbifolds
• Interactions in Intersecting Brane Models
• Brane world effective actions for D-branes with fluxes
• Gauge Threshold Corrections in Intersecting Brane World Models
• Superstring Threshold Corrections to Yukawa Couplings
• N-point Amplitudes in Intersecting Brane Models
• Realistic Yukawa Couplings through Instantons in Intersecting Brane Worlds
• String predictions for near future colliders from one-loop scattering amplitudes around D-brane worlds
• Thresholds for Intersecting D-branes Revisited
• Gauge Threshold Corrections for Local String Models
• Gauge Threshold Corrections for Local Orientifolds
• Complete Gauge Threshold Corrections for Intersecting Fractional D6-Branes: The Z6 and Z6' Standard Models
• One-loop Yukawas on Intersecting Branes
• Gauge Thresholds and Kaehler Metrics for Rigid Intersecting D-brane Models
• Intersecting Brane Worlds at One Loop
• Effective Action of Matter Fields in Four-Dimensional String Orientifolds
• Two-Point Functions of Chiral Fields at One Loop in Type II
• On gauge couplings and thresholds in Type I Gepner models and otherwise
• Higher Loop Spin Field Correlators in D=4 Superstring Theory
• Noncommutativity from the string perspective: modification of gravity at a mm without mm sized extra dimensions

Cited by in corpus (6)

• Dark Radiation and Dark Matter in Large Volume Compactifications
• Towards the One-loop Kahler Metric of Calabi-Yau Orientifolds
• Higgs, Moduli Problem, Baryogenesis and Large Volume Compactifications
• Superpotential de-sequestering in string models
• One-loop adjoint masses for non-supersymmetric intersecting branes
• Supersymmetric Radiative Flavour