Electroweak supersymmetric effects on high energy unpolarized and polarized single top production at LHC

Details Electroweak supersymmetric effects on high energy unpolarized and polarized single top production at LHC Electroweak supersymmetric effects on high energy unpolarized and polarized single top production at LHC

2004-10-06

arxiv.org/abs/hep-ph/0410089v2

Phys.Rev.D71:033005,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 9 figures

Scientific paper

10.1103/PhysRevD.71.033005

We consider various processes of single top production at LHC in the theoretical framework of the MSSM and examine the role of the supersymmetric electroweak one-loop corrections in a special moderately light SUSY scenario, in an initial parton-pair c.m. high energy range where a logarithmic asymptotic expansion of Sudakov type can be used. We show that the electroweak virtual effects are systematically large, definitely beyond the relative ten percent size, particularly for a final $tH^-$ pair where a special enhancement is present. We show then in a qualitative way the kind of precision tests of the model that would be obtainable from accurate measurements of the energy distributions of the various cross sections and of the top polarization asymmetries.

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