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Showing 1 to 8 of 8 for “"Supersymmetrie"”.
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Search for promptly decaying heavy neutral leptons in proton-proton collision events with trilepton final states using the CMS detector
… deeltjes die wijzen op het bestaan van een supersymmetrie met behulp van zowel cut-gebaseerde zoekregio’s als nieuwe neurale netwerkarchitecturen. Een breed scala aan vereenvoudigde modellen die eindigen in het verval naar een toestand van meerdere leptonen wordt onderzocht in de analyse. …
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CP violation in production and decay of supersymmetric particles
In dieser Dissertation untersuchen wir CP verletzende Effekte von MSSM-Phasen in Produktion und Zwei-Teilchen-Zerfaellen von Neutralinos, Charginos und Sfermionen. Fuer verschiedene supersymmetrische Prozesse definieren und berechnen wir CP-ungerade Asymmetrien, welche auf Spatprodukten basieren. …
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SUSY Seesaw model and phenomenological implications for leptonic processes at low energies and leptogenesis
In this work the supersymmetric seesaw model and its effects on low-energy leptonic observables and thermal leptogenesis have been systematically investigated. Precision measurements will increase the sensitivity on lepton-flavor violating decays, particularly on Br(l_j->l_i gamma) and also on …
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Towards a reconstruction of the SUSY seesaw model
In this work, we studied in great detail how the unknown parameters of the SUSY seesaw model can be determined from measurements of observables at or below collider energies, namely rare flavor violating decays of leptons, slepton pair production processes at linear colliders and slepton mass …
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Search for R-parity violating supersymmetry in multilepton final states with the DŸ detector
Results obtained from a search for the trilepton signature mu-mu-l (with l=e, or mu) are combined with two complementary searches for the trilepton signatures e-e-l and e-e-tau and interpreted in the framework of R-parity violating Supersymmetry. Pairwise, R-parity conserving production of the …
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Signatures of SUSY dark matter at the LHC and in the spectra of cosmic rays
Over the past decades it has become evident that luminous matter amounts only to a small fraction of the energy density in the universe. More than 75% is accounted for by what is called the dark energy, and about 20% must exist in the form of some kind of non-relativistic dark matter. Among the …
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Space qualification of the transition radiation detector of the AMS-02 experiment and indirect search for dark matter
We know that the universe consists of 22\% dark matter. The dark matter particle has to be stable, non-relativistic and only weakly interacting. But we don't know what the dark matter is made of and how it is distributed within our Galaxy. Supersymmetric models predict the existence of the lightest …
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Search for supersymmetry in opposite sign dilepton final states with the CMS experiment
A search for physics beyond the standard model in final states with opposite-sign isolated lepton pairs accompanied by hadronic jets and missing transverse energy is presented. This signature is a typical signature in many supersymmetric models. In a study based on simulation the discovery …