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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 ...
Production of Heavy Flavours with Associated Jets at HERA
(2007)
Inclusive cross-sections for the production of open beauty and charm in ep collisions at HERA recorded with the ZEUS detector in the years 1996-2000 are measured. The data is restricted to photoproduction processes, i.e. ...
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 ...
Aspects of Grand Unification in Higher Dimensions
(2005)
We consider various aspects of string phenomenology in the context of heterotic orbifold constructions, where special emphasis is laid on the connection between GUT models in extra dimensions and their relation to string ...
Charm Production in Charged Current Deep Inelastic e+p Scattering at HERA
(2006)
The measurement of charm production in charged current deep inelastic positron-proton scattering is investigated with the ZEUS detector at the HERA collider. The data used has been collected from 1995 to 2000, corresponding ...
Measurements of q2 moments of inclusive B → Xcℓν decays toward an alternative determination of |Vcb|
(2021-12-06)
This thesis presents the first measurement of the first to the fourth moments of the four-momentum transfer squared q2 spectrum for inclusive B → Xcℓν decays, where ℓ = e, μ. The determination of these ......
Measurement of the Associated Production of a Single Top Quark and a W Boson in Single-Lepton Events with the ATLAS Detector
(2016-06-10)
The production of a single top quark in association with a W boson (Wt) is measured with the ATLAS detector using proton-proton collision events with one lepton, three jets and missing transverse energy at √s = 8 TeV. ...
Studies into the mis-identification probability of tau leptons and a measurement of the cross section σ(pp → W) × BR(W → τντ) at a center-of-mass energy of √s = 7 TeV with the ATLAS detector
(2016-02-23)
Since the start of data taking in the year 2009 the Large Hadron Collider has been operated very successfully. Next to the ongoing efforts to fully determine the properties of the newly found Higgs-like boson, precision ......
Study of Excited Ξ Baryons in Anti-Proton Proton Collisions with the PANDA Detector
(2020-02-11)
Understanding the excitation pattern of baryons is indispensable for the understanding of non-perturbative QCD. Up to now only the nucleon excitation spectrum has been subject to systematic experimental studies, in contrast ...