Table of Contents
ISRN High Energy Physics
Volume 2012, Article ID 903106, 31 pages
http://dx.doi.org/10.5402/2012/903106
Research Article

Supersymmetry Breaking in a Minimal Anomalous Extension of the MSSM

1Dipartimento di Fisica dell'Università di Roma “Tor Vergata”, INFN Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Roma, Italy
2National Institute of Chemical Physics and Biophysics, Ravala 10, 10143 Tallinn, Estonia

Received 20 April 2012; Accepted 4 June 2012

Academic Editors: J. R. Espinosa and A. Koshelev

Copyright © 2012 A. Lionetto and A. Racioppi. 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.

Abstract

We study a supersymmetry breaking mechanism in the context of a minimal anomalous extension of the MSSM. The anomaly cancellation mechanism is achieved through suitable counterterms in the effective action, that is, the Green-Schwarz terms. We assume that the standard MSSM superpotential is perturbatively realized; that is, all terms allowed by gauge symmetries except for the μ-term which has a nonperturbative origin. The presence of this term is expected in many intersecting D-brane models which can be considered as the ultraviolet completion of our model. We show how soft supersymmetry breaking terms arise in this framework, and we study the effect of some phenomenological constraints on this scenario.