111 research outputs found
The automatic computation for SUSY processes
We have constructed a system for the automatic computation of cross-sections
for the processes of the SUSY QED by the extension of the GRACE system
including a Majorana fermion. The system has also been applied to another model
including Majorana fermions, MSSM, by the definition of the model file.Comment: total 4 page
Is a high muon of the event observed at HERA a signature of the stop?
We investigate the event with high transverse momenta
observed at HERA (H1) and show that this event could be interpreted as a
signature of the single production of the scalar top quark in a supersymmetric
model with -parity breaking interactions. The event topology of the H1 event
is rather characteristic and in fact it can be simulated by our specific
scenario if we reasonably choose our model parameters to be ({\romannumeral 1})
TeV [TeV] for
[] and ({\romannumeral 2})
GeV, GeV
GeV and
.Comment: 8 pages, LaTeX, 4 figures (included in a separate .uu file
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