Diminishing "charginos nearly degenerate with the lightest neutralino" slit using precision data
High Energy Physics - Phenomenology
2008-11-26 v2
Abstract
Though LEP II direct searches still cannot exclude a chargino nearly degenerate with the lightest neutralino if their mass is only slightly above half of the Z boson mass, it can be excluded indirectly analyzing precision data. In this particular limit simple analytical formulas for oblique electroweak radiative corrections are presented.
Cite
@article{arxiv.hep-ph/9907219,
title = {Diminishing "charginos nearly degenerate with the lightest neutralino" slit using precision data},
author = {M. Maltoni and M. I. Vysotsky},
journal= {arXiv preprint arXiv:hep-ph/9907219},
year = {2008}
}
Comments
6 pages, latex, 2 figures included; published on PLB. Bounds on chargino mass are improved; two references are added