Intersecting Brane Worlds at One Loop

Abstract

We develop techniques for one-loop diagrams on intersecting branes. The one-loop propagator of chiral intersection states on D6 branes is calculated exactly and its finiteness is shown to be guaranteed by RR tadpole cancellation. The result is used to demonstrate the expected softening of power law running of Yukawa couplings at the string scale. We also develop methods to calculate arbitrary N-point functions at one-loop, including those without gauge bosons in the loop. These techniques are also applicable to heterotic orbifold models.

35 pages, 3 figures; added reference, corrected typos, JHEP style

References in corpus (27)

• Grand Unification at Intermediate Mass Scales through Extra Dimensions
• Toward Realistic Intersecting D-Brane Models
• Chiral Four-Dimensional N=1 Supersymmetric Type IIA Orientifolds from Intersecting D6-Branes
• Computing Yukawa Couplings from Magnetized Extra Dimensions
• Yukawa couplings in intersecting D-brane models
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• N-point Amplitudes in Intersecting Brane Models
• g-function flow in perturbed boundary conformal field theories
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• String theory predictions for future accelerators
• Contact interactions in D-brane models
• Flavour in Intersecting Brane Models and Bounds on the String Scale
• Flavour Changing Neutral Currents in Intersecting Brane Models
• One-loop Yukawas on Intersecting Branes
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Cited by in corpus (19)

• Four-dimensional String Compactifications with D-Branes, Orientifolds and Fluxes
• Towards a Non-Supersymmetric String Phenomenology
• Realistic Yukawa Couplings through Instantons in Intersecting Brane Worlds
• Operator analysis of physical states on magnetized $T^2/Z_N$ orbifolds
• Yukawa couplings and masses of non-chiral states for the Standard Model on D6-branes on T6/Z6'
• Superpotential de-sequestering in string models
• Orientifold's Landscape: Non-Factorisable Six-Tori
• Correlators of arbitrary untwisted operators and excited twist operators for N branes at angles
• Two-Point Functions of Chiral Fields at One Loop in Type II
• On gauge couplings and thresholds in Type I Gepner models and otherwise
• Anomaly Mediation in Superstring Theory
• One-loop Yukawa Couplings in Local Models
• One-loop adjoint masses for non-supersymmetric intersecting branes
• Canonical quantization of a string describing $N$ branes at angles
• One-loop masses of Neumann-Dirichlet open strings and boundary-changing vertex operators
• Massless Spectra and Gauge Couplings at One-Loop on Non-Factorisable Toroidal Orientifolds
• Setting the Stage for a Non-Supersymmetric UV-Complete String Phenomenology
• Yukawa couplings from magnetized D-brane models on non-factorisable tori
• One-loop adjoint masses for branes at non-supersymmetric angles