One-loop corrections to the chargino and neutralino mass matrices in the on-shell scheme
High Energy Physics - Phenomenology
2009-11-07 v2
Abstract
We present a consistent procedure for the calculation of the one-loop corrections to the charginos and neutralinos by using their on-shell mass matrices. The on-shell gaugino mass parameters M and M', and the Higgsino mass parameter \mu are defined by the elements of these on-shell mass matrices. The on-shell mass matrices are different by finite one-loop corrections from the tree-level ones given in terms of the on-shell parameters. When the on-shell M and \mu are determined by the chargino sector, the neutralino masses receive corrections up to 4%. This must be taken into account in precision measurements at future e^+ e^- linear colliders.
Cite
@article{arxiv.hep-ph/0104109,
title = {One-loop corrections to the chargino and neutralino mass matrices in the on-shell scheme},
author = {H. Eberl and M. Kincel and W. Majerotto and Y. Yamada},
journal= {arXiv preprint arXiv:hep-ph/0104109},
year = {2009}
}
Comments
One reference added, typo in eq. (20) corrected