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Search for Flavour Changing Neutral Currents through Single Top-Quark Production at √s= 8 TeV with the ATLAS Detector
(2017-12-20)Flavour changing neutral current processes are highly suppressed in the Standard Model due to the Glashow-Iliopoulos-Maiani mechanism. However, many extensions of the Standard Model predict the existence of these processes ... -
Search for Higgs Boson Pair Production in the bb̅τ+τ- Final State with the ATLAS Experiment at the LHC
(2023-12-18)A search for Higgs boson pair (HH) production in final states with two b quarks and two τ leptons using 139 fb-1 of proton–proton collision data at a centre-of-mass energy of 13 TeV recorded ... -
Search for MSSM Higgs Bosons in Di-τ Final States with the ATLAS Experiment
(2013-04-12)A search for neutral MSSM Higgs bosons decaying into a τ lepton pair, A/H/h → τ+τ-, is presented. The search is based on proton?proton collision events recorded with the ATLAS detector ... -
Search for Neutral Higgs Bosons of the MSSM decaying to τhad τhad in proton-proton collisions at √s = 8 TeV with the ATLAS detector
(2016-11-21)A search for the neutral Higgs bosons predicted by the Minimal Supersymmetric Standard Model, h, H and A, is presented in this thesis. It is based on a data sample with an integrated luminosity of ... -
Search for R-parity violating Supersymmetry in multi-lepton final states with the ATLAS detector
(2014-08-29)The benchmark scenario BC1 is an example of an R-parity violating supersymmetric (SUSY) model with one lepton number violating coupling, lambda121. Its lightest supersymmetric particle is the stau1, ... -
Search for solar chameleons with an InGrid based X-ray detector at the CAST experiment
(2018-08-15)Chameleons are particles with a density dependent effective mass and couplings to matter as well as photons. They are introduced in modifications to General Relativity involving scalar fields and aiming at explaining Dark ... -
Search for Squarks and Gluinos in τ-lepton Final States with the ATLAS Experiment
(2019-09-24)Suche nach Squarks und Gluinos in τ-Lepton Endzuständen mit dem ATLAS Experiment
Das erfolgreiche und wohletablierte Standardmodell der Teilchenphysik ist in der Lage, die Mehrheit der beobachteten ... -
A search for stable massive particles carrying electric charges in the range of 2e to 6e in proton-proton collisions at √s = 7 TeV recorded with the ATLAS detector at the LHC
(2013-09-02)This dissertation presents a search for long-lived, multi-charged particles using the ATLAS detector at the LHC. Motivation for this search arose from an unexploited search regime at ATLAS of stable massive particles with ... -
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 ... -
Search for Supersymmetry in final states with jets, missing transverse momentum and at least one τ lepton with the ATLAS Experiment
(2013-07-12)The first search for Supersymmetry (SUSY) in final states with at least one τ lepton, two or more jets and large missing transverse energy based on proton-proton collisions recorded with the ATLAS detector at the LHC is ... -
Search for Supersymmetry in Tau Lepton Final States with the ATLAS Detector
(2016-01-20)In the search for signs of possible physics beyond the Standard Model, signatures with multiple tau leptons, jets and missing transverse momentum are promising candidates for a discovery. A search in this final state has ... -
Search for Supersymmetry with Hadronically and Leptonically Decaying Tau Leptons at the ATLAS Experiment
(2017-01-20)The search for physics beyond the Standard Model (SM) is a central focus of modern particle physics. Supersymmetric extensions (SUSY) to the SM offer elegant solutions to many unresolved questions of the theory. This thesis ... -
Search for Supersymmetry with Tau Leptons, Muons, Missing Transverse Momentum and Jets with the ATLAS Experiment at the Large Hadron Collider
(2013-09-16)Beyond the established Standard Model (SM), the search for new physics is among the most important ventures of modern physics. Supersymmetry (SUSY) is a natural candidate for an extension of the SM to account for unexplained ... -
Search for the H → bb Decay of the Standard Model Higgs Boson in Associated Production with Vector Bosons Using ATLAS Data at √s = 8 TeV
(2018-10-29)In this thesis, a search for the H → bb decay of the Standard Model Higgs boson is presented. A dataset of 20.2 fb-1 recorded by the ATLAS detector at ... -
Search for the associated production of a W boson and a top quark with the ATLAS detector at 7 TeV
(2015-06-03)An analysis searching for the associated production of a W boson and a top quark based on 4.7 fb-1 proton collision data recorded by the ATLAS detector at the LHC in 2011 at a centre-of-mass energy of √s ... -
Search for the Associated Production of Charginos and Neutralinos in Proton-Antiproton Collisions at √s = 1.96 TeV with the DØ Detector at the Tevatron
(2009-06-08)A search for Supersymmetry is performed via the associated production of charginos and neutralinos in final states consisting of three charged leptons and missing transverse energy using data collected with the \Dzero\ ... -
Search for the H → b¯b decay mode of the Standard Model Higgs boson in associated production with a vector boson in proton-proton collisions at √s = 8 TeV with the ATLAS experiment
(2014-06-11)In this thesis, a search for the H→b¯b decay mode of the Standard Model Higgs boson in associated production with a vector boson is presented. The search is based on the entire data-set recorded by the ATLAS experiment in ... -
Search for the Higgs Boson Decay into Bottom and Charm Quarks Using Proton-Proton Collisions at √s = 13 TeV
(2019-02-05)A search for the Standard Model (SM) Higgs boson, produced in association with a Z boson, in decays to bottom or charm quarks is presented. The SM Higgs boson mass is assumed to be 125 GeV. These searches analyse a data ... -
Search for the Standard Model Higgs boson pair production and new physics phenomena in the bb τ+hadτ-had final state with the ATLAS detector
(2019-12-12)A search for the Standard Model (SM) Higgs boson pair production and new physics phenomena in the $bbar{b}tau_{had}^+ tau_{had}^-$ final state is presented. The search uses $SI{36.1}{fb^{-1}}$ of $pp$ collisions data at a ... -
Search for top-quark-pair associated Higgs production with tau leptons using the ATLAS detector at the LHC
(2019-03-20)The search for Higgs boson production in association with a pair of top quarks in multilepton final states is presented. Seven final states defined by the number and flavour of charged leptons are analysed in the data set ...
