Higher dimensional operators and their effects in (non)supersymmetric models
High Energy Physics - Phenomenology
2008-11-26 v1 High Energy Physics - Theory
Abstract
It is shown that a 4D N=1 softly broken supersymmetric theory with higher derivative operators in the Kahler or the superpotential part of the Lagrangian and with an otherwise arbitrary superpotential, can be re-formulated as a theory without higher derivatives but with additional (ghost) superfields and modified interactions. The importance of the analytical continuation Minkowski-Euclidean space-time for the UV behaviour of such theories is discussed in detail. In particular it is shown that power counting for divergences in Minkowski space-time does not always work in models with higher derivative operators.
Cite
@article{arxiv.0708.2501,
title = {Higher dimensional operators and their effects in (non)supersymmetric models},
author = {D. M. Ghilencea},
journal= {arXiv preprint arXiv:0708.2501},
year = {2008}
}
Comments
Based on talk presented at "Supersymmetry 2007"; 11 pages, LaTeX