Large Squark and Slepton Masses for the First-Two Generations in the Anomalous U(1) SUSY Breaking Models
Abstract
Considering that the soft SUSY breaking scalar masses come from a vacuum expectation value of the D-term for an external gauge multiplet, the renormalization of the scalar masses is related to the gauge anomaly. Then, if the external gauge symmetry is anomaly-free and has no kinetic mixing with the other U(1) gauge symmetries, the scalar masses are non-renormalized at all orders assuming that the gaugino masses are negligibly small compared with the scalar masses. Motivated by this, we construct models where the sfermion masses for the first-two generations are much heavier than the other superparticles in the minimal SUSY standard model in a framework of the anomalous U(1) mediated SUSY breaking. In these models we have to introduce extra chiral multiplets with the masses as large as those for the first-two generation sfermions. We find that phenomenologically desirable patterns for the soft SUSY breaking terms can be obtained in the models.
Keywords
Cite
@article{arxiv.hep-ph/9810411,
title = {Large Squark and Slepton Masses for the First-Two Generations in the Anomalous U(1) SUSY Breaking Models},
author = {J. Hisano and Kiichi Kurosawa and Yasunori Nomura},
journal= {arXiv preprint arXiv:hep-ph/9810411},
year = {2009}
}
Comments
11 pages, Latex, to appear in Phys.Lett.B