%0 Unpublished work
%T Special supersymmetric features of stop-chargino production at LHC
%+ Istituto Nazionale di Fisica Nucleare, Sezione di Lecce (INFN, Sezione di Lecce)
%+ Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (INFN, Sezione di Trieste)
%+ Laboratoire de Physique Théorique et Astroparticules (LPTA)
%A Beccaria, M.
%A Macorini, G.
%A Panizzi, L.
%A Renard, Fernand Michel
%A Verzegnassi, C.
%Z 25 pages, 9 figures, minor changes, corrected typos
%Z 08-074
%8 2008-12-24
%D 2008
%Z 0812.4375
%Z Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Preprints, Working Papers, ...
%X 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.
%G English
%L hal-00349202
%U https://hal.science/hal-00349202
%~ IN2P3
%~ LPTA
%~ CNRS
%~ UNIV-MONTP2
%~ UNIV-MONTPELLIER
%~ UM1-UM2