Constraints on Higgs boson properties using WW<sup>∗</sup>(→ eνμν) jj production in 36.1<sup>fb-1</sup> of √s=13 TeV pp collisions with the ATLAS detector
Creators: name: Aad, G
name: Abbott, B
name: Abbott, DC
name: Abud, AA
name: Abeling, K
name: Abhayasinghe, DK
name: Abidi, SH
name: AbouZeid, OS
name: Abraham, NL
name: Abramowicz, H
name: Abreu, H
name: Abulaiti, Y
name: Acharya, BS
name: Achkar, B
name: Adam, L
name: Bourdarios, CA
name: Adamczyk, L
name: Adamek, L
name: Adelman, J
name: Adiguzel, A
name: Adorni, S
name: Adye, T
name: Affolder, AA
name: Afik, Y
name: Agapopoulou, C
name: Agaras, MN
name: Aggarwal, A
name: Agheorghiesei, C
name: Aguilar-Saavedra, JA
name: Ahmad, A
name: Ahmadov, F
name: Ahmed, WS
name: Ai, X
name: Aielli, G
name: Akatsuka, S
name: Akbiyik, M
name: Åkesson, TPA
name: Akilli, E
name: Akimov, AV
name: Khoury, KA
name: Alberghi, GL
name: Albert, J
name: Verzini, MJA
name: Alderweireldt, S
name: Aleksa, M
name: Aleksandrov, IN
name: Alexa, C
name: Alexopoulos, T
name: Alfonsi, A
name: Alfonsi, F
name: Alhroob, M
name: Ali, B
name: Ali, S
name: Aliev, M
name: Alimonti, G
name: Allaire, C
name: Allbrooke, BMM
name: Allport, PP
name: Aloisio, A
name: Alonso, F
name: Alpigiani, C
name: Camelia, EA
name: Estevez, MA
name: Alviggi, MG
name: Coutinho, YA
name: Ambler, A
name: Ambroz, L
name: Amelung, C
name: Amidei, D
name: Santos, SPAD
name: Amoroso, S
name: Amrouche, CS
name: Anastopoulos, C
name: Andari, N
name: Andeen, T
name: Anders, JK
name: Andrean, SY
name: Andreazza, A
name: Andrei, V
name: Anelli, CR
name: Angelidakis, S
name: Angerami, A
name: Anisenkov, AV
name: Annovi, A
name: Antel, C
name: Anthony, MT
name: Antipov, E
name: Antonelli, M
name: Antrim, DJA
name: Anulli, F
name: Aoki, M
name: Pozo, JAA
name: Aparo, MA
name: Bella, LA
name: Aranzabal, N
name: Ferraz, VA
name: Pereira, RA
name: Arcangeletti, C
name: Arce, ATH
name: Arguin, JF
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Regular Article - Experimental Physics

description: This article presents the results of two studies of Higgs boson properties using the $WW^*(\rightarrow e\nu\mu\nu)jj$ final state, based on a dataset corresponding to 36.1/fb of $\sqrt{s}$=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 $\tan(\alpha) = 0.0 \pm 0.4$ stat. $ \pm 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 $a_L=0.91^{+0.10}_{-0.18}$(stat.)$^{+0.09}_{-0.17}$(syst.) and $a_{T}=1.2 \pm 0.4 $(stat.)$ ^{+0.2}_{-0.3} $(syst.). These coupling strengths are translated into pseudo-observables, resulting in $\kappa_{VV}= 0.91^{+0.10}_{-0.18}$(stat.)$^{+0.09}_{-0.17}$(syst.) and $\epsilon_{VV} =0.13^{+0.28}_{-0.20}$ (stat.)$^{+0.08}_{-0.10}$(syst.). All results are consistent with the Standard Model predictions.