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Special supersymmetric features of stop-chargino production at LHC ![]() Auteur(s): Beccaria M., Macorini G., Panizzi L., Renard F. M., Verzegnassi C.
(Document sans référence bibliographique) 2008-12-24Texte intégral en Openaccess : Ref HAL: hal-00349202_v1 Ref Arxiv: 0812.4375 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote Résumé: The process of stop-chargino production at LHC has been calculated in the Minimal Supersymmetric Standard Model at the complete electroweak 1-loop level, assuming a mSUGRA symmetry breaking scheme. Several remarkable properties of the angular and invariant mass distributions of the basic $b~g\to\tilde{t}_a~ \chi^-_i$ amplitudes have been derived. For a vast collection of different benchmark points the overall 1-loop effects are of the order of a relative few percent. From a partial scanning of single parameters performed at Born level, a strong dependence of the rates on the stop mixing angle and a correlation with tanbeta have been evidentiated. Commentaires: 25 pages, 9 figures, minor changes, corrected typos |