144 citations · 389 across the 6 of their papers we have counts for
4 papers · 1 filter
D-brane instanton effects in Type II orientifolds: local and global issues
Mirjam Cvetic, Robert Richter, Timo Weigand
We review how D-brane instantons can generate open string couplings of stringy hierarchy in the superpotential which violate global abelian symmetries and are therefore perturbativ…
Hierarchies from D-brane instantons in globally defined Calabi-Yau Orientifolds
Mirjam Cvetic, Timo Weigand
We construct the first globally consistent semi-realistic Type I string vacua on an elliptically fibered manifold where the zero modes of the Euclidean D1-instanton sector allow fo…
Non-perturbative Yukawa Couplings from String Instantons
Ralph Blumenhagen, Mirjam Cvetic, Dieter Lust +2
Non-perturbative D-brane instantons can generate perturbatively absent though phenomenologically relevant couplings for Type II orientifold compactifications with D-branes. We disc…
Computation of D-brane instanton induced superpotential couplings - Majorana masses from string theory
Mirjam Cvetic, Robert Richter, Timo Weigand
We perform a detailed conformal field theory analysis of D2-brane instanton effects in four-dimensional type IIA string vacua with intersecting D6-branes. In particular, we explici…