SUSY breaking mediation by D-brane instantons

Buican, Matthew; Franco, Sebastián

doi:10.1088/1126-6708/2008/12/030

SUSY breaking mediation by D-brane instantons

Buican, Matthew; Franco, Sebastián

Authors

Matthew Buican

Sebastián Franco

Abstract

It is well known that D-brane instantons can generate contributions to the effective superpotential of gauge theories living on D-branes which are perturbatively forbidden by global U(1) symmetries. We extend this idea to theories with supersymmetry breaking, studying the effect of D-brane instantons stretched between the SUSY-breaking and visible sectors. Analogously to what happens in the SUSY case, this mechanism can give rise to perturbatively forbidden soft terms (among other effects). We introduce and discuss general properties of instanton mediation. We illustrate our ideas in simple Type IIB toroidal orientifolds. As a bi-product, we present a string theory realization of a Polonyi hidden sector.

Citation

Buican, M., & Franco, S. (2008). SUSY breaking mediation by D-brane instantons. Journal of High Energy Physics, 2008(12), Article 030. https://doi.org/10.1088/1126-6708/2008/12/030

Journal Article Type	Article
Publication Date	Dec 9, 2008
Deposit Date	Mar 28, 2013
Publicly Available Date	Feb 14, 2014
Journal	Journal of High Energy Physics
Print ISSN	1126-6708
Electronic ISSN	1029-8479
Publisher	Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed	Peer Reviewed
Volume	2008
Issue	12
Article Number	030
DOI	https://doi.org/10.1088/1126-6708/2008/12/030
Keywords	Strings and branes phenomenology.