A5074112706- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Particle Accelerators and Free-Electron Lasers
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Distributed and Parallel Computing Systems
- Relativity and Gravitational Theory
- Algebraic and Geometric Analysis
- Neutrino Physics Research
University of Münster
2017-2020
Laboratoire de Physique Théorique et Hautes Energies
2017
Sorbonne Université
2017
Centre National de la Recherche Scientifique
2017
Institut Universitaire de France
2017
We present simplified MSSM models for light neutralinos and charginos with realistic mass spectra gaugino-higgsino mixing, that can be used in experimental searches at the LHC. The formerly naive approach of defining mixing matrix elements manually independently each other does not yield genuine benchmarks. suggest use less simplified, but models, whose are result a proper diagonalisation. propose novel strategy targeting design such benchmark scenarios, accounting user-defined constraints...
We present a calculation of slepton pair production at the LHC next-to-next- to-leading logarithmic (NNLL) accuracy, matched to approximate next-to-next-to-leading order (aNNLO) QCD corrections. collect relevant analytical formulae, discuss matching logarithmically enhanced and fixed-order results describe transformation parton densities hadronic cross sections from Mellin space. Numerically, we find moderate increase invariant-mass distributions total with respect our previous...
The MadGraph5 aMC@NLO framework aims to automate all types of leading- and next-to-leading-order-accurate simulations for any user-defined model that stems from a renormalisable Lagrangian. In this paper, we present the key ingredients such models in context supersymmetric theories. order do so, extend FeynRules package by giving it possibility dealing with different renormalisation options are relevant models. We also show how deal problem posed presence narrow resonances, thus generalising...
Now that the mass limits for gluinos have been pushed to few-TeV range, they might only be visible at LHC in associated production with lighter gauginos. We compute corresponding cross section next-to-leading logarithmic (NLL) and order (NLO) precision QCD coupling constant. The resulting expressions are implemented public code RESUMMINO can directly used experimental searches.
Now that the mass limits for gluinos have been pushed to few-TeV range, they might only be visible at LHC in associated production with lighter gauginos. We compute corresponding cross section next-to-leading logarithmic (NLL) and order (NLO) precision QCD coupling constant. The resulting expressions are implemented public code RESUMMINO can directly used experimental searches.
We present a tool to produce benchmarks with realistic mass spectra and mixing in the gaugino-higgsino sector of MSSM. suggest as next-to-minimal approach use benchmarks, whose matrix elements are result proper diagonalisation at treelevel. scan over four relevant parameters $\{μ, \tan β, M_{1}, M_{2}\}$ for specific grid neutralino chargino masses. demonstrate how define measure quality fit, including method maximise properties such gaugino or higgsino content.
We present a calculation of slepton pair production at the LHC next-to-next-to-leading logarithmic (NNLL) accuracy, matched to approximate order (aNNLO) QCD corrections. collect relevant analytical formulae, discuss matching logarithmically enhanced and fixed-order results describe transformation parton densities hadronic cross sections from Mellin space. Numerically, we find moderate increase invariant-mass distributions total with respect our previous next-to-leading (NLL) accuracy (NLO),...