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Tau lepton reconstruction with energy flow and the search for R-parity violating supersymmetry at the ATLAS experiment
(2012-08-31)
The ATLAS experiment at the Large Hadron Collider (LHC) is measuring proton-proton collisions at a centre-of-mass energy of √s=7 TeV since 2010, an energy never reached before in collider experiments. A wide variety of ...
Search for Supersymmetry and kinematic endpoint measurement in final states with two tau leptons with the ATLAS detector at the LHC
(2011-10-21)
Discovery prospects for Supersymmetry in final states with at least two tau leptons and large missing transverse energy are evaluated for LHC proton-proton collisions measured with the ATLAS detector. In a first study based ......
Das Entdeckungspotential von Supersymmetrie mit Endzust¨anden aus mindesten zwei Tau Leptonen und fehlender Transversalenergie in Proton-Proton Kollisionen wird untersucht, sowie die M¨oglichkeit einer Messung des Endpunktes ......
Das Entdeckungspotential von Supersymmetrie mit Endzust¨anden aus mindesten zwei Tau Leptonen und fehlender Transversalenergie in Proton-Proton Kollisionen wird untersucht, sowie die M¨oglichkeit einer Messung des Endpunktes ......
Supersymmetry Phenomenology in the Context of Neutrino Physics and the Large Hadron Collider LHC
(2012-09-17)
Experimentally, it is well established that the Standard Model of particle physics requires an extension to accommodate the neutrino oscillation data, which indicates that at least two neutrinos are massive and that two ...
All Possible Lightest Supersymmetric Particles in Proton Hexality Violating Minimal Supergravity Models and their Signals at Hadron Colliders
(2009-07-14)
The most widely studied supersymmetric scenario is the minimal supersymmetric standard model (MSSM) with more than a hundred free parameters. However for detailed phenomenological studies, the minimal supergravity (mSUGRA) ...
Development of a Benchmark Parameter Scan for Higgs Bosons in the NMSSM Model and a Study of the Sensitivity for H->AA->4τ in Vector Boson Fusion with the ATLAS Detector
(2008)
An evaluation of the discovery potential for NMSSM Higgs bosons of the ATLAS experiment at the LHC is presented. For this purpose, seven two-dimensional benchmark planes in the six-dimensional parameter space of the ...
Constraints on Neutralino masses and mixings from Cosmology and Collider Physics
(2007)
Bounds on cross section measurements of chargino pair production at LEP yield a bound on the chargino mass. If the GUT relation $M_1 = 5/3 \tw[2] M_2$ is assumed, then the lightest neutralino must be heavier than $\approx ...
Theoretical Interpretation of Experimental Data from Direct Dark Matter Detection
(2007)
Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. Currently, the most promising method to detect many difeerent WIMP candidates is the direct detection of the recoil energy ...
Local Gauge Coupling Running in Supersymmetric Gauge Theories on Orbifolds
(2007)
By extending Feynman's path integral calculus to fields which respect orbifold boundary conditions we provide a straightforward and convenient framework for loop calculations on orbifolds. We take advantage of this general ...
Towards Low Energy Physics from the Heterotic String
(2008)
We investigate orbifold compactifications of the heterotic string, addressing in detail their construction, classification and phenomenological potential. Based on the insight gained from grand unification theories, we ...
Anomaly-Free Discrete Gauge Symmetries in Froggatt-Nielsen Models
(2006)
Discrete symmetries can forbid dangerous B- and L-violating operators in the supersymmetric Lagrangian. Due to the violation of global discrete symmetries by quantum gravity effects, the introduced discrete ...