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000481134 1001_ $$0P:(DE-H253)PIP1086155$$aBahl, Henning$$b0$$eCorresponding author
000481134 245__ $$aConstraining the ${\mathcal {C}}{\mathcal {P}}$ structure of Higgs-fermion couplings with a global LHC fit, the electron EDM and baryogenesis
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000481134 520__ $$a${\mathcal {C}}{\mathcal {P}}$ violation in the Higgs couplings to fermions is an intriguing, but not yet extensively explored possibility. We use inclusive and differential LHC Higgs boson measurements to fit the ${\mathcal {C}}{\mathcal {P}}$ structure of the Higgs Yukawa couplings. Starting with simple effective models featuring ${\mathcal {C}}{\mathcal {P}}$ violation in a single Higgs–fermion coupling, we probe well-motivated models with up to nine free parameters. We also investigate the complementarity of LHC constraints with the electron electric dipole moment bound, taking into account the possibility of a modified electron Yukawa coupling, and assess to which extent ${\mathcal {C}}{\mathcal {P}}$ violation in the Higgs–fermion couplings can contribute to the observed baryon asymmetry of the universe. Even after including the recent analysis of angular correlations in $H\rightarrow \tau ^+\tau ^-$ decays, we find that a complex tau Yukawa coupling alone may be able to account for the observed baryon asymmetry, but with large uncertainties in the baryogenesis calculation. A combination of complex top and bottom quark Yukawa couplings yields a result four times larger than the sum of their separate contributions, but remains insufficient to account for the observed baryon asymmetry.
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000481134 650_7 $$2INSPIRE$$acoupling: Yukawa
000481134 650_7 $$2INSPIRE$$aCP: violation
000481134 650_7 $$2INSPIRE$$abaryon: asymmetry
000481134 650_7 $$2INSPIRE$$aelectron: electric moment
000481134 650_7 $$2INSPIRE$$acoupling: Higgs
000481134 650_7 $$2INSPIRE$$ainterpretation of experiments: CERN LHC Coll
000481134 650_7 $$2INSPIRE$$abaryogenesis
000481134 650_7 $$2INSPIRE$$astructure
000481134 650_7 $$2INSPIRE$$aangular correlation
000481134 650_7 $$2INSPIRE$$aquark
000481134 650_7 $$2INSPIRE$$aHiggs particle
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000481134 7001_ $$0P:(DE-H253)PIP1013258$$aFuchs, Elina$$b1
000481134 7001_ $$aHeinemeyer, Sven$$b2
000481134 7001_ $$aKatzy, Judith$$b3
000481134 7001_ $$0M.Menen.1$$aMenen, Marco$$b4
000481134 7001_ $$0P:(DE-H253)PIP1024824$$aPeters, Krisztian$$b5
000481134 7001_ $$aSaimpert, Matthias$$b6
000481134 7001_ $$0P:(DE-H253)PIP1010814$$aWeiglein, Georg$$b7
000481134 773__ $$0PERI:(DE-600)1459069-4$$a10.1140/epjc/s10052-022-10528-1$$gVol. 82, no. 7, p. 604$$n7$$p604$$tThe European physical journal / C$$v82$$x1434-6044$$y2022
000481134 7870_ $$0PUBDB-2022-01290$$aBahl, Henning et.al.$$d2022$$iIsParent$$rDESY-22-033 ; arXiv:2202.11753 ; CERN-TH-2021-231 ; EFI-22-1 ; IFT-UAM/CSIC-21-148$$tConstraining the CP structure of Higgs-fermion couplings with a global LHC fit, EDM and baryogenesis
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