Diminishing "charginos nearly degenerate with the lightest neutralino'' slit using precision data

Authors
Maltoni, M Vysotsky, MI
Citation
M. Maltoni et Mi. Vysotsky, Diminishing "charginos nearly degenerate with the lightest neutralino'' slit using precision data, PHYS LETT B, 463(2-4), 1999, pp. 230-233
Citations number
11
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
463
Issue
2-4
Year of publication
1999
Pages
230 - 233
Database
ISI
SICI code
0370-2693(19990930)463:2-4<230:D"NDWT>2.0.ZU;2-2
Abstract
Though LEP II direct searches still cannot exclude a chargino nearly degene rate with the lightest neutralino if their mass is only slightly above half of the Z boson mass, it can be excluded indirectly analyzing precision dat a. In this particular limit simple analytical formulas for oblique electrow eak radiative corrections are presented. (C) 1999 Published by Elsevier Sci ence B.V. All rights reserved.