Landau Pole Effects and the Parameter Space of the Minimal Supergravity Model
High Energy Physics - Phenomenology
2016-09-01 v1
Abstract
It is shown that analyses at the electroweak scale can be significantly affected due to Landau pole effects in certain regions of the parameter space. This phenomenon arises due to a large magnification of errors of the input parameters , which have currently a 10 percent uncertainty in their determination. The influence of the Landau pole on the constraint that the scalar SUSY spectrum be free of tachyons is also investigated.It is found that this constraint is very strong and eliminates a large portion of the parameter space.Under the above constraint the trilinear soft SUSY breaking term at the electroweak scale is found to lie in a restricted domain.
Cite
@article{arxiv.hep-ph/9502388,
title = {Landau Pole Effects and the Parameter Space of the Minimal Supergravity Model},
author = {Pran Nath and Jizhi Wu and Richard Arnowitt},
journal= {arXiv preprint arXiv:hep-ph/9502388},
year = {2016}
}
Comments
24 pages,Tex, including 4 figures available on request