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arXiv · 1211.1017

String Constraints on Discrete Symmetries in MSSM Type II Quivers

Pascal Anastasopoulos·Mirjam Cvetic·Robert Richter·Patrick K. S. Vaudrevange
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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.

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Pascal Anastasopoulos, Mirjam Cvetic, Robert Richter, Patrick K. S. Vaudrevange. 2012-11-05. String Constraints on Discrete Symmetries in MSSM Type II Quivers. https://doi.org/10.1007/jhep03(2013)011

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