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Advances in High Energy Physics
Volume 2015 (2015), Article ID 785217, 6 pages
Research Article

Singlet Extensions of the MSSM with Symmetry

1Physik-Department T30, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
2Excellence Cluster Universe, Boltzmannstraße 2, 85748 Garching, Germany
3Arnold Sommerfeld Center for Theoretical Physics, Ludwig-Maximilians-Universität München, Theresienstraße 37, 80333 München, Germany

Received 3 March 2015; Accepted 9 June 2015

Academic Editor: Kai Schmidt-Hoberg

Copyright © 2015 Michael Ratz and Patrick K. S. Vaudrevange. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.


We discuss singlet extensions of the MSSM with symmetry. We show that holomorphic zeros can avoid a potentially large coefficient of the term linear in the singlet. The emerging model has both an effective term and a supersymmetric mass term for the singlet which are controlled by the gravitino mass. The term turns out to be suppressed against by about one or two orders of magnitude. We argue that this class of models might provide us with a solution to the little hierarchy problem of the MSSM.