String Constraints on Discrete Symmetries in MSSM Type II Quivers
Abstract
We study the presence of discrete gauge symmetries in D-brane semi-realistic compactifications. After establishing the constraints on the transformation behaviour of the chiral matter for the presence of a discrete gauge symmetry we perform a systematic search for discrete gauge symmetries within local semi-realistic D-brane realizations, based on four D-brane stacks, of the MSSM and the MSSM with three right-handed neutrinos. The systematic search reveals that Proton hexality, a discrete symmetry which ensures the absence of R-parity violating terms as well as the absence of dangerous dimension 5 proton decay operators, is only rarely realized. Moreover, none of the semi-realistic local D-brane configurations exhibit any family dependent discrete gauge symmetry.
Keywords
Cite
@article{arxiv.1211.1017,
title = {String Constraints on Discrete Symmetries in MSSM Type II Quivers},
author = {Pascal Anastasopoulos and Mirjam Cvetic and Robert Richter and Patrick K. S. Vaudrevange},
journal= {arXiv preprint arXiv:1211.1017},
year = {2015}
}
Comments
32 pages, v2: minor changes, references added