Neutralinos from Chargino Decays in the Complex MSSM
arXiv:1202.0488
Abstract
We review the evaluation of two-body decay modes of charginos in the Minimal Supersymmetric Standard Model with complex parameters (cMSSM). Assuming heavy scalar quarks we take into account all decay channels involving charginos, neutralinos, (scalar) leptons, Higgs bosons and SM gauge bosons. The evaluation of the decay widths is based on a full one-loop calculation including hard and soft QED radiation. Here we focus on the decays involving the Lightest Supersymmetric Particle (LSP), i.e. the lightest neutralino, or a heavier neutralino and a W boson. The higher-order corrections of the chargino decay widths can easily reach a level of \pm 10%, translating into corrections of similar size in the respective branching ratios. These corrections are important for the correct interpretation of LSP and heavier neutralino production at the LHC and at a future linear e+e- collider.
arXiv comment6 pages, 2 figures, talk given at the LCWS 2011, September 2011, Granada, Spain
References in corpus (12)
- Automatized One-Loop Calculations in 4 and D dimensions
- Physics Interplay of the LHC and the ILC
- TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
- The Implementation of the Minimal Supersymmetric Standard Model in FeynArts and FormCalc
- Regularization by Dimensional Reduction: Consistency, Quantum Action Principle, and Supersymmetry
- ILC Reference Design Report Volume 1 - Executive Summary
- Physics at the CLIC Multi-TeV Linear Collider
- From the LHC to Future Colliders
- Proposals for Bottom Quark/Squark Renormalization in the Complex MSSM
- MSSM Higgs-boson mass predictions and two-loop non-supersymmetric counterterms
- Heavy Scalar Top Quark Decays in the Complex MSSM: A Full One-Loop Analysis
- On the On-Shell Renormalization of the Chargino and Neutralino Masses in the MSSM