ATLAS Theses

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2020-08-08
06:10

Recherche d'un nouveau boson massif $W$' se désintégrant en un quark top et un quark $b$ avec le détecteur ATLAS au LHC / Nibigira, Emery
The main goal of this thesis is the search for new charged massive gauge bosons, $W$' that decay to a top quark and a bottom quark leading to a final state with a charged lepton, neutrino, and two $b$ quarks [...]
tel-02529742 ; 2019CLFAC070 - 2019. - 179 p.

2020-08-05
06:49

Higgs "Photo-Production" and Related Experimental Issues in the Forward Direction of the ATLAS Detector / Dehghanian, Nooshin
This thesis is devoted to the study of aspects of the forward physics and forward detector system of the ATLAS detector [...]
CERN-THESIS-2019-374. - 2019. - 244 p.

2020-08-05
06:49

Jet activity in top-quark events at $\sqrt {s}$ = 13 TeV using 3.2 fb$^{-1}$ data collected by the ATLAS detector / Eckardt, Christoph
In this thesis, the measurement of the normalised differential cross-sections of top quark pair production in association with jets using 3.2 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of 13 TeV by the ATLAS experiment at the LHC are presented [...]
CERN-THESIS-2019-376. - 2020. - 157 p.

2020-08-05
06:48

Through the looking glass and what ATLAS found there: a Dark Sector search for light Dark Matter / Sebastiani, Cristiano
Latest theories beyond the Standard Model predict a new ‘dark force’ mediated by a light neutral particle called a dark photon, which opens a window to a complex Dark Sector [...]
CERN-THESIS-2019-379. - 2019. - 166 p.

2020-08-04
06:57

Sensitivity study of a search for a charged scalar particle in proton-proton collisions at a center of mass energy of 14 TeV / Haddad, Kays
Many models that extend the Standard Model Higgs sector predict the existence of at least one charged Higgs boson, in addition to the neutral Higgs boson expected from the Standard Model [...]
77 p.

2020-08-02
06:17

2020-07-31
10:26

Search for Dark Matter Produced in Association with Heavy Standard Model Particles at $\sqrt{s} = 13$ TeV with the ATLAS Detector at the LHC / Lou, Xuanhong
Dark Matter composes a significant part of the Universe, while its physical nature remains unknown [...]
CERN-THESIS-2020-087 - 201 p.

2020-07-28
23:43

Cross-section measurements of top-quark pair production in association with a hard photon at 13 TeV with the ATLAS detector / Zoch, Knut
25 years after the top quark's discovery, the Large Hadron Collider at CERN produces proton-proton collision data on unprecedented scales at unprecedented energies – and has heralded an era of top-quark precision measurements [...]
arXiv:2007.14701 ; CERN-THESIS-2020-081 ; II.Physik-UniG\"o-Diss-2020/01 II.Physik-UniGö-Diss-2020/01. - 171 p.

2020-07-28
11:14

2020-07-27
10:45

Background estimation, search for heavy resonances and off-shell Higgs boson signal strength measurement in the 4 lepton final state with the ATLAS detector / Bellos, Panagiotis
The discovery of Higgs boson in 2012 by the ATLAS and CMS experiments marked a key milestone in the history of particle physics [...]
CERN-THESIS-2020-077 - 205 p.