179 citations · 564 across the 5 of their papers we have counts for
4 papers · 1 filter
SU(5) orientifolds, Yukawa couplings, Stringy Instantons and Proton Decay
Elias Kiritsis, Michael Lennek, Bert Schellekens
We construct a large class of SU(5) orientifold vacua with tadpole cancellation both for the standard and the flipped case. We give a general analysis of superpotential couplings u…
Discriminating MSSM families in (free-field) Gepner Orientifolds
Elias Kiritsis, Bert Schellekens, Mirian Tsulaia
A complete analysis of orientifold compactifications involving Gepner models that are free fields (k=1,2) is performed. A set of tadpole solutions is found that are variants of a s…
Instanton Induced Neutrino Majorana Masses in CFT Orientifolds with MSSM-like spectra
L. E. Ibanez, A. N. Schellekens, A. M. Uranga
Recently it has been shown that string instanton effects may give rise to neutrino Majorana masses in certain classes of semi-realistic string compactifications. In this paper we m…
Orientifolds, hypercharge embeddings and the Standard Model
P. Anastasopoulos, T. P. T. Dijkstra, E. Kiritsis +1
The embedding of the SM hypercharge into an orientifold gauge group is studied. Possible embeddings are classified, and a systematic construction of bottom-up configurations and to…