Weak Gravity Conjecture as a Razor Criterium for Exotic D-brane instantons

Abstract

We discuss implications of Weak gravity conjecture (WGC) for exotic D-brane instantons. In particular, WGC leads to indirect stringent bounds on non-perturbative superpotentials generated by exotic instantons, with many implications for phenomenology: R-parity violating processes, neutrino mass, $\mu$-problem, Neutron-Antineutron transitions and collider physics.

Few formal typos corrected

References in corpus (15)

• Spacetime Instanton Corrections in 4D String Vacua - The Seesaw Mechanism for D-Brane Models
• Neutrino Majorana Masses from String Theory Instanton Effects
• Instanton Induced Neutrino Majorana Masses in CFT Orientifolds with MSSM-like spectra
• Non-perturbative Yukawa Couplings from String Instantons
• Infrared Consistency and the Weak Gravity Conjecture
• D-brane Instantons on the T^6/Z_3 orientifold
• Lifting D-Instanton Zero Modes by Recombination and Background Fluxes
• Flux interactions on D-branes and instantons
• The Weinberg Operator and a Lower String Scale in Orientifold Compactifications
• Neutron Majorana mass from exotic instantons
• Dynamical supersymmetry breaking from unoriented D-brane instantons
• 'Exotic vector-like pair' of color-triplet scalars
• Localization of Gauge Fields and Monopole Tunnelling
• Some Low Dimensional Evidence for the Weak Gravity Conjecture
• D-brane instanton induced mu-terms and their hierarchical structure