Yukawa coupling corrections to stop, sbottom, and stau production in e+ e- annihilation

Details Yukawa coupling corrections to stop, sbottom, and stau production in e+ e- annihilation Yukawa coupling corrections to stop, sbottom, and stau production in e+ e- annihilation

1999-03-19

arxiv.org/abs/hep-ph/9903413v1

JHEP 9905:016,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 8 figures, uses JHEP.cls

Scientific paper

10.1088/1126-6708/1999/05/016

We calculate within the MSSM the one-loop Yukawa coupling corrections to the processes e+ e- \to stops, sbottoms, and staus in order of Yukawa coupling squared. These corrections are due to the exchange of charginos, neutralinos, charged and neutral Higgs bosons, and charged and neutral Higgs ghosts. We give the complete analytical formulae. We also perform a detailed numerical analysis of the Yukawa coupling corrections, including also the SUSY-QCD corrections. It turns out that for stop and sbottom production the Yukawa coupling corrections are typically +/- 10% of the tree-level cross section. For stau production they are about +/- 5%.

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