FullO(α)corrections toe+e−→f˜if˜¯j

2005/06/03 by K. Kovařı́k, K. Kovarik, C. Weber +2
Engineering · Physics and Astronomy · #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.72.053010

published as Phys.Rev. D72 (2005) 053010 · 32 pages, 24 figures, RevTeX4

arxiv created 2005/06/03 · openalex publication_date 2005/09/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We present a complete precision analysis of the sfermion pair production process e⁺e^\ensuremath-\ensuremath→\stackrel\texttildelowf_i\stackrel\texttildelowf_j(f=t,b,\ensuremathτ,\ensuremathν_\ensuremathτ) in the minimal supersymmetric standard model. Our results extend the previously calculated weak corrections by including all one-loop corrections together with higher order QED corrections. We present the details of the analytical calculation and discuss the renormalization scheme. The numerical analysis shows the results for total cross sections, forward-backward, and left-right asymmetries. It is based on the SPS1a^\ensuremath' point from the SPA project. The complete corrections are about 10% and have to be taken into account in a high precision analysis.

Citations

• One-loop corrections to the chargino and neutralino mass matrices in the on-shell scheme
• Fermion mixing renormalization and gauge invariance
• Slepton production at e + e- and e-e- linear colliders
• Radiative corrections in theSU(2)L×U(1)theory: A simple renormalization framework