Non-perturbative Yukawa Couplings from String Instantons
High Energy Physics - Theory
2008-11-26 v1 High Energy Physics - Phenomenology
Abstract
Non-perturbative D-brane instantons can generate perturbatively absent though phenomenologically relevant couplings for Type II orientifold compactifications with D-branes. We discuss the generation of the perturbatively vanishing SU(5) GUT Yukawa coupling of type 10 10 5_H. Moreover, for a simple globally consistent intersecting D6-brane model, we discuss the generation of mass terms for matter fields. This can serve as a mechanism for decoupling exotic matter.
Cite
@article{arxiv.0707.1871,
title = {Non-perturbative Yukawa Couplings from String Instantons},
author = {Ralph Blumenhagen and Mirjam Cvetic and Dieter Lust and Robert Richter and Timo Weigand},
journal= {arXiv preprint arXiv:0707.1871},
year = {2008}
}
Comments
4 pages, 2 tables, 2 figures