001     601967
005     20240308210616.0
024 7 _ |a 10.3204/PUBDB-2024-00440
|2 datacite_doi
037 _ _ |a PUBDB-2024-00440
041 _ _ |a English
088 _ _ |a DESY-THESIS-2024-001
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100 1 _ |a Mendizabal Morentin, Mikel
|b 0
|e Corresponding author
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245 _ _ |a $Z$ boson production in association with jets: measurement and phenomenology
|f 2020-02-15 - 2023-08-09
260 _ _ |a Hamburg
|c 2024
|b Verlag Deutsches Elektronen-Synchrotron DESY
300 _ _ |a 164
336 7 _ |a Output Types/Dissertation
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336 7 _ |a Book
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336 7 _ |a DISSERTATION
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336 7 _ |a PHDTHESIS
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336 7 _ |a Thesis
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|2 EndNote
336 7 _ |a Dissertation / PhD Thesis
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|s 1709912598_601678
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336 7 _ |a doctoralThesis
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490 0 _ |a DESY-THESIS
502 _ _ |a Dissertation, Universität Hamburg, 2023
|c Universität Hamburg
|b Dissertation
|d 2023
|o 2023-08-09
520 _ _ |a In this thesis, we study two $Z$ boson production mechanisms: the Drell-Yan process andreal electroweak corrections.The transverse momentum spectrum of the Drell-Yan lepton pair is of general interest asit is sensitive to the hadron structure. Moreover, the small transverse momentum region, $q{\tiny T}$ $<$ m$_{ll}$, is sensitive to the 3D structure of the hadron. To describe the $q{\tiny T}$ $<$ m$_{ll}$ region,resummation to all orders is needed. However, the $q{\tiny T}$ m$_{ll}$ region is non-perturbativeand has to be modelled. This region is modelled via a Gaussian distribution of the intrinsictransverse momentum of the incoming partons. Nonetheless, this is insufficient, and verysoftgluon radiation is needed. We investigate the effect of very-soft gluon radiations in the $q{\tiny T}$ $≪\ $m$_{ll}$ region within the Parton Branching framework, and how it relates to the Collins-Soper kernel of the $TMD$ factorisation. The very-soft gluon radiation is removed throughthe soft-gluon resolution scale in the parton showers of Monte-Carlo event generators, such as ${P}$${\small YTHIA}$$8$ and ${H}$${\small ERWIG}$$7$. We demonstrate that this leads to a centre-of-mass energydependent intrinsic transverse momentum, by tuning the intrinsic tranerse momentum. At high partonic centre-of-mass energies, electroweak corrections become large, and the $Z$ boson might be produced as a real electroweak correction. In $QCD$ processes, at highjet transverse momentum, virtual electroweak corrections become large, and at the $TeV$ scale, their contribution to the cross-section is of the order of 10 $\%$. We measure the contributionof real electroweak corrections to $QCD$ events as a function of the jet transversemomentum. We analyse proton-proton collisions at a centre-of-mass energy of 13 $TeV$ atthe $LHC$, recorded by the $CMS$ experiment during 2016, corresponding to an integratedluminosity of 36.3 fb$^{−1}$. We measure the contribution of the real electroweak correctionto a 1 $TeV$ jet transverse momentum to be 1-2 $\%$. Moreover, we investigate differentobservables sensitive to real electroweak corrections to test their modelling in differenttheoretical scenarios.
536 _ _ |a 611 - Fundamental Particles and Forces (POF4-611)
|0 G:(DE-HGF)POF4-611
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693 _ _ |a LHC
|e LHC: CMS
|1 EXP:(DE-588)4398783-7
|0 EXP:(DE-H253)LHC-Exp-CMS-20150101
|5 EXP:(DE-H253)LHC-Exp-CMS-20150101
|x 0
700 1 _ |a Jung, Hannes
|0 P:(DE-H253)PIP1002297
|b 1
|e Thesis advisor
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700 1 _ |a Gallo-Voss, Elisabetta
|0 P:(DE-H253)PIP1003350
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|e Thesis advisor
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856 4 _ |u https://bib-pubdb1.desy.de/record/601967/files/ThesisPubMikelMendizabal.pdf
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856 4 _ |u https://bib-pubdb1.desy.de/record/601967/files/desy-thesis-24-001.title.pdf
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856 4 _ |u https://bib-pubdb1.desy.de/record/601967/files/desy-thesis-24-001.title.pdf?subformat=pdfa
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910 1 _ |a Deutsches Elektronen-Synchrotron
|0 I:(DE-588b)2008985-5
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910 1 _ |a Deutsches Elektronen-Synchrotron
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910 1 _ |a External Institute
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910 1 _ |a Deutsches Elektronen-Synchrotron
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913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l Matter and the Universe
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|0 G:(DE-HGF)POF4-611
|3 G:(DE-HGF)POF4
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914 1 _ |y 2023
915 _ _ |a OpenAccess
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920 _ _ |l yes
920 1 _ |0 I:(DE-H253)CMS-20120731
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980 _ _ |a phd
980 _ _ |a VDB
980 _ _ |a book
980 _ _ |a I:(DE-H253)CMS-20120731
980 _ _ |a UNRESTRICTED
980 1 _ |a FullTexts


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