Issue
EPL
Volume 85, Number 6, March 2009
Article Number 61001
Number of page(s) 5
Section The Physics of Elementary Particles and Fields
DOI http://dx.doi.org/10.1209/0295-5075/85/61001
Published online 24 March 2009
EPL, 85 (2009) 61001
DOI: 10.1209/0295-5075/85/61001

An extension for direct gauge mediation of metastable supersymmetry breaking

Fuqiang Xu and Jin Min Yang

Institute of Theoretical Physics, Academia Sinica - Beijing 100190, China

jmyang@itp.ac.cn

received 24 October 2008; accepted in final form 21 February 2009; published March 2009
published online 24 March 2009

Abstract
We study the direct mediation of metastable supersymmetry breaking by a $\Phi ^{2}$-deformation to the ISS model and extend it by splitting both ${\rm Tr}\Phi $ and ${\rm Tr}\Phi ^{2}$ terms in the superpotential and gauging the flavor symmetry. We find that with such an extension enough-long-lived metastable vacua can be obtained and the proper gaugino masses can be generated. Also, this allows for constructing a kind of models which can avoid the Landau pole problem. Especially, in our metastable vacua there exist a large region for the parameter m3 which can satisfy the phenomenology requirements and allow for a low SUSY-breaking scale ($h\mu _{2}$ ~ 100 TeV).

PACS
12.60.Jv - Supersymmetric models.
14.80.Ly - Supersymmetric partners of known particles.

© EPLA 2009