Anders, J. K.; Beck, H. P.; Chatterjee, M.; Ereditato, A.; Franconi, L.; Haug, S. (2022). Constraints on Higgs boson properties using W W ∗(→ eνμν) jj production in 36.1 fb−1 of √s = 13 TeV pp collisions with the ATLAS detector. The European physical journal. C, Particles and fields, 82(7) Springer 10.1140/epjc/s10052-022-10366-1
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This article presents the results of two studies of Higgs boson properties using the WW∗(→eνμν)jj final state, based on a dataset corresponding to 36.1fb−1 of s√=13 TeV proton–proton collisions recorded by the ATLAS experiment at the Large Hadron Collider. The first study targets Higgs boson production via gluon–gluon fusion and constrains the CP properties of the effective Higgs–gluon interaction. Using angular distributions and the overall rate, a value of tan(α)=0.0±0.4(stat.)±0.3(syst.) is obtained for the tangent of the mixing angle for CP-even and CP-odd contributions. The second study exploits the vector-boson fusion production mechanism to probe the Higgs boson couplings to longitudinally and transversely polarised W and Z bosons in both the production and the decay of the Higgs boson; these couplings have not been directly constrained previously. The polarisation-dependent coupling-strength scale factors are defined as the ratios of the measured polarisation-dependent coupling strengths to those predicted by the Standard Model, and are determined using rate and kinematic information to be aL=0.91+0.10−0.18(stat.)+0.09−0.17(syst.) and aT=1.2±0.4(stat.)+0.2−0.3(syst.). These coupling strengths are translated into pseudo-observables, resulting in κVV=0.91+0.10−0.18(stat.)+0.09−0.17(syst.) and ϵVV=0.13+0.28−0.20 (stat.)+0.08−0.10(syst.). All results are consistent with the Standard Model predictions.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) 10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) |
UniBE Contributor: |
Anders, John Kenneth, Beck, Hans Peter, Chatterjee, Meghranjana, Ereditato, Antonio, Franconi, Laura, Haug, Sigve |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1434-6044 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
BORIS Import LHEP |
Date Deposited: |
04 Apr 2023 15:32 |
Last Modified: |
13 Apr 2023 14:39 |
Publisher DOI: |
10.1140/epjc/s10052-022-10366-1 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autor*innen namentlich erwaehnt; ATLAS collaboration |
BORIS DOI: |
10.48350/181451 |
URI: |
https://boris.unibe.ch/id/eprint/181451 |
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