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000647078 037__ $$aPUBDB-2026-01008
000647078 041__ $$aEnglish
000647078 1001_ $$0P:(DE-H253)PIP1100412$$aWitt, Mathilde$$b0$$eCorresponding author$$gfemale
000647078 245__ $$aSearch for CP violation in the tau Yukawa coupling with the CMS Run 3 data$$f2025-07-28 - 2026-01-28
000647078 260__ $$c2026
000647078 300__ $$a110
000647078 3367_ $$2DataCite$$aOutput Types/Supervised Student Publication
000647078 3367_ $$02$$2EndNote$$aThesis
000647078 3367_ $$2BibTeX$$aMASTERSTHESIS
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000647078 3367_ $$0PUB:(DE-HGF)19$$2PUB:(DE-HGF)$$aMaster Thesis$$bmaster$$mmaster$$s1774009815_1098633
000647078 3367_ $$2ORCID$$aSUPERVISED_STUDENT_PUBLICATION
000647078 502__ $$aMasterarbeit, University of Hamburg, 2026$$bMasterarbeit$$cUniversity of Hamburg$$d2026$$o2026-02-04
000647078 520__ $$aThis thesis presents a precision measurement of the CP properties of the Higgs tau Yukawa coupling, focusing on the H → τ τ → μa3pr 1 +3ν decay channel with ggF and VBF production.The study uses proton–proton collisions data recorded by CMS in 2022 and 2023 at √s = 13.6TeV, corresponding to an integrated luminosity of 62.4 fb−1. The CP-mixing angle αHττ is determined via the coplanarity angle ϕCP . In the μa3pr 1 channel, IP and ⃗hPV methods are combined for the first time, potentially allowing a twofold improvement in sensitivity compared to the DP method used for hadronic tau decays in Run 2. The tau momenta are reconstructed stepwise, first correcting the amplitudes with the fastMTT di-tau mass reconstruction algorithm and subsequently the angles with a Global Event Fit (GEF). The expected sensitivity to αHττ is improved within the μa3pr 1 channel from 0.41 σ to 0.49 σ, corresponding to a 20% enhancement. The result from this channel will contribute to a combined analysis across all di-tau channels.
000647078 536__ $$0G:(DE-HGF)POF4-611$$a611 - Fundamental Particles and Forces (POF4-611)$$cPOF4-611$$fPOF IV$$x0
000647078 693__ $$0EXP:(DE-H253)LHC-Exp-CMS-20150101$$1EXP:(DE-588)4398783-7$$5EXP:(DE-H253)LHC-Exp-CMS-20150101$$aLHC$$eLHC: CMS$$x0
000647078 7001_ $$0P:(DE-H253)PIP1003350$$aGallo-Voss, Elisabetta$$b1$$eThesis advisor$$udesy
000647078 8564_ $$uhttps://bib-pubdb1.desy.de/record/647078/files/Master_Thesis_WITT_2025.pdf$$yRestricted
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000647078 9101_ $$0I:(DE-588b)2008985-5$$6P:(DE-H253)PIP1003350$$aDeutsches Elektronen-Synchrotron$$b1$$kDESY
000647078 9131_ $$0G:(DE-HGF)POF4-611$$1G:(DE-HGF)POF4-610$$2G:(DE-HGF)POF4-600$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lMatter and the Universe$$vFundamental Particles and Forces$$x0
000647078 9141_ $$y2026
000647078 920__ $$lyes
000647078 9201_ $$0I:(DE-H253)CMS-20120731$$kCMS$$lLHC/CMS Experiment$$x0
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000647078 980__ $$aVDB
000647078 980__ $$aI:(DE-H253)CMS-20120731
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