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000452811 005__ 20231108210749.0
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000452811 0247_ $$2datacite_doi$$a10.3204/PUBDB-2020-04872
000452811 037__ $$aPUBDB-2020-04872
000452811 041__ $$aEnglish
000452811 1001_ $$0P:(DE-H253)PIP1025974$$aRauch, Daniel$$b0$$eCorresponding author$$gmale
000452811 245__ $$aAspects of Rare Production and Decay Processes of the Higgs Boson$$f2015-06-01 - 2020-09-28
000452811 260__ $$c2020
000452811 300__ $$a221 pp
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000452811 3367_ $$02$$2EndNote$$aThesis
000452811 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1699438625_1820769
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000452811 502__ $$aDissertation, University of Hamburg, 2020$$bDissertation$$cUniversity of Hamburg$$d2020$$o2020-09-28
000452811 520__ $$aThe Higgs boson is the most recent fundamental particle to be experimentally observed. Due to its large mass and its couplings to massive bosons and fermions, it has a wide variety of decay channels. Among them is the still unobserved rare decay $H \to Z(\ell^+\ell^-)\gamma$. In this thesis, a search for the $Z\gamma$ decay mode of the Standard Model Higgs boson as well as potential new higher-mass resonances decaying to the same final state is presented. The analysis is based on a dataset of 36.1 fb$^{-1}$ of proton-proton collisions collected with the ATLAS detector at the CERN Large Hadron Collider at a centre-of-mass energy of 13 TeV. No significant excess of events over the background-only expectation was observed, and consequently, an upper limit at the 95% CL on the cross section times branching ratio of 6.6 times the Standard Model expectation was derived. The expected upper limits were determined to be 5.2 (4.4) times the Standard Model expectation when assuming the presence (absence) of this decay mode.
000452811 536__ $$0G:(DE-HGF)POF3-611$$a611 - Fundamental Particles and Forces (POF3-611)$$cPOF3-611$$fPOF III$$x0
000452811 536__ $$0G:(DE-HGF)2015_IFV-VH-GS-500$$aPHGS, VH-GS-500 - PIER Helmholtz Graduate School (2015_IFV-VH-GS-500)$$c2015_IFV-VH-GS-500$$x1
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000452811 7001_ $$0P:(DE-H253)PIP1013754$$aTackmann, Kerstin$$b1$$eThesis advisor
000452811 7001_ $$0P:(DE-H253)PIP1002273$$aKatzy, Judith$$b2$$eThesis advisor
000452811 7001_ $$0P:(DE-H253)PIP1004211$$aSchleper, Peter$$b3$$eThesis advisor
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