CERN Accelerating science

ATLAS Theses

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2018-12-10
02:35
Optimisation studies and data-driven background estimation in searches for the supersymmetric partner of the top quark with the ATLAS Detector at the LHC / Miano, Fabrizio
This thesis presents the search for the supersymmetric partner of the top quark in \sqrt{s} = 13 TeV proton-proton collisions at the LHC using data collected by the ATLAS detector in 2015 and 2016 [...]
CERN-THESIS-2018-277 - 151 p.

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2018-12-08
05:55
Searching for Dark Matter with Boosted Higgs Decays in Proton-Proton Collisions at $\sqrt{s}$ = 13 TeV with the ATLAS Detector / Whallon, Nikola Lazar
If Dark Matter particles interact with Standard Model particles, it could be possible to pair produce Dark Matter particles in association with a detectable Standard Model particle at a collider such as the LHC [...]
CERN-THESIS-2018-276 - 197 p.

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2018-11-28
16:54
Measurement of Higgs boson properties in the diphoton decay channel and a search for di-Higgs production in the gamma gamma b anti-b final state with the ATLAS detector / Cerda Alberich, Leonor
This thesis presents two physics analyses performed with the ATLAS detector at the Large Hadron Collider [...]
CERN-THESIS-2018-269 -

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2018-11-21
23:04
Analysis of the Higgs boson decay in the $H\rightarrow\tau_\textrm{had}\tau_\textrm{had}$ channel and $CP$ properties with $\sqrt{s}=13~\mbox{TeV}$ collisions at the ATLAS detector / Yuen, Stephanie Pui Yan
In 2012, the last undiscovered particle predicted by the Standard Model of particle physics (SM), the Higgs boson, was discovered by the ATLAS and CMS collaborations in a number of its bosonic decay channels [...]
CERN-THESIS-2018-256 -

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2018-11-21
14:02
Searches for new physics involving massive invisible particles / Burr, Jonathan
One of the most obvious problems with the Standard Model is the lack of any explanation for dark matter: a form of matter predicted from astrophysical observations but not compatible with any known subatomic particle [...]
CERN-THESIS-2018-255 - 178 p.

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2018-11-21
13:42
Fiducial cross-section measurements of the production of a prompt photon in association with a top-quark pair at $\sqrt{s}=13$ TeV with the ATLAS detector at the LHC / Smith, Joshua Wyatt
The cross sections for top-quark pair production in association with a photon are measured in a fiducial volume with the ATLAS detector at a centre-of-mass energy of 13 TeV [...]
CERN-THESIS-2018-254 -

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2018-11-12
18:20
Searches for Rare Exclusive Higgs boson decays to a Meson and an Associated Photon with the ATLAS Detector / Broughton, James
Searches for the Higgs boson decaying into a meson and an associated photon are presented using $\sqrt{s}=13$ TeV proton-proton collision data collected by the ATLAS experiment during LHC Run II in 2015 and 2016 [...]
CERN-THESIS-2018-235 -

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2018-11-12
10:05
Measurement of the fiducial and total single top-quark $t$-channel production cross-sections with the ATLAS detector at $\sqrt{s}= 8$ TeV / Tepel, Fabian-Phillipp
Detailed measurements of t-channel single top-quark production cross-section are presented [...]
CERN-THESIS-2018-234 - 202 p.

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2018-11-08
22:04
Searches for supersymmetric particles in final states with multiple top and bottom quarks with the ATLAS detector / Rizzi, Chiara
This dissertation presents two searches for Supersymmetry in proton-proton collisions at CERN's LHC, targeting signal models that lead to the production of multiple top quarks or bottom quarks in the final state [...]
CERN-THESIS-2018-231 - 257 p.

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2018-11-08
04:08
Search for top-antitop quark resonances with the ATLAS detector at the Large Hadron Collider / Chapleau, Bertrand
The intriguing nature of the top quark, by far the heaviest particle in the Stan- dard Model of particle physics, has motivated the development of many theoretical extensions predicting the existence of new massive particles decaying to a pair of top-antitop quarks [...]
CERN-THESIS-2014-459 - 154 p.

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