Heavy Scalar Top Quark Decays in the Complex MSSM: A Full One-Loop Analysis
arXiv:1111.7289 · doi:10.1103/PhysRevD.86.035014
Abstract
We evaluate all two-body decay modes of the heavy scalar top quark in the Minimal Supersymmetric Standard Model with complex parameters (cMSSM) and no generation mixing. The evaluation is based on a full one-loop calculation of all decay channels, also including hard QED and QCD radiation. The renormalization of the complex parameters is described in detail. The dependence of the heavy scalar top quark decay on the relevant cMSSM parameters is analyzed numerically, including also the decay to Higgs bosons and another scalar quark or to a top quark and the lightest neutralino. We find sizable contributions to many partial decay widths and branching ratios. They are roughly of O(10%) of the tree-level results, but can go up to 30% or higher. These contributions are important for the correct interpretation of scalar top quark decays at the LHC and, if kinematically allowed, at the ILC. The evaluation of the branching ratios of the heavy scalar top quark will be implemented into the Fortran code FeynHiggs.
86 pages, 38 figures; minor changes, version published as Phys. Rev. D86 (2012) 035014
References in corpus (19)
- Search for Neutral MSSM Higgs Bosons at LEP
- Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics
- Implications of a 125 GeV Higgs for supersymmetric models
- Interpreting the LHC Higgs Search Results in the MSSM
- Techniques for the calculation of electroweak radiative corrections at the one-loop level and results for W-physics at LEP200
- The Higgs sector of the complex MSSM at two-loop order: QCD contributions
- ILC Reference Design Report Volume 1 - Executive Summary
- MSSM Higgs Couplings to Bottom Quarks: Two-Loop Corrections
- Automatised full one-loop renormalisation of the MSSM I: The Higgs sector, the issue of tan(beta) and gauge invariance
- Automatised full one-loop renormalisation of the MSSM II: The chargino-neutralino sector, the sfermion sector and some applications
- Proposals for Bottom Quark/Squark Renormalization in the Complex MSSM
- Light Stop Decay in the MSSM with Minimal Flavour Violation
- Measurement of CP Violation in Stop Cascade Decays at the LHC
- Running of and in the MSSM
- Routines for the diagonalization of complex matrices
- Complete one-loop corrections to decays of charged and CP-even neutral Higgs bosons into sfermions
- CP Violation in Correlated Production and Decay of Unstable Particles
- Higgs Production in Association with Top Squark Pairs in the MSSM at the LHC: the Decay Patterns
- Consistent Higher-Order Corrections to Stop_i -> Sbottom_j H^+ in the Complex MSSM
Cited by in corpus (27)
- GM2Calc: Precise MSSM prediction for of the muon
- Higgs-mass predictions in the MSSM and beyond
- Momentum-dependent two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM
- Generic calculation of two-body partial decay widths at the full one-loop level
- The Implementation of the Renormalized Complex MSSM in FeynArts and FormCalc
- Renormalization scheme dependence of the two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM
- Proposals for Bottom Quark/Squark Renormalization in the Complex MSSM
- Non-decoupling two-loop corrections to (g-2)_μ from fermion/sfermion loops in the MSSM
- Neutral Higgs Boson Production at e+e- Colliders in the Complex MSSM: A Full One-Loop Analysis
- Neutralino Decays in the Complex MSSM at One-Loop: a Comparison of On-Shell Renormalization Schemes
- Heavy Higgs Decays into Sfermions in the Complex MSSM: A Full One-Loop Analysis
- Novel Higgs-to-125 GeV Higgs boson decays in the complex NMSSM
- Automated third generation squark production to next-to-leading order
- On-Shell neutral Higgs bosons in the NMSSM with complex parameters
- Two Higgs bosons near 125 GeV in the NMSSM: beyond the narrow width approximation
- Next-to-Leading Order NMSSM Decays with CP-odd Higgs Bosons and Stops
- Charged Higgs Boson Production at e+e- Colliders in the Complex MSSM: A Full One-Loop Analysis
- Renormalization of the C2HDM with FeynMaster 2
- Chargino and Neutralino Production at e+e- Colliders in the Complex MSSM: A Full One-Loop Analysis
- Slepton Production at e+e- Colliders in the Complex MSSM: A Full One-Loop Analysis
- Automated Choice for the Best Renormalization Scheme in BSM Models
- Theoretical concepts and measurement prospects for BSM trilinear couplings: a case study for scalar top quarks
- On the On-Shell Renormalization of Fermion Masses, Fields, and Mixing Matrices at 1-loop
- New SUSY Fits for the ILC and CLIC
- Neutralinos from Chargino Decays in the Complex MSSM
- MSSM Higgs Bosons from Stop and Chargino Decays
- The loop effects on the chargino decays in the MSSM