Sökning: onr:"swepub:oai:DiVA.org:kth-316140" >
Constraints on Higg...
Constraints on Higgs boson properties using WW*(-> e nu mu nu)jj production in 36.1 fb(-1) of root s=13 TeV pp collisions with the ATLAS detector
-
- Aad, G. (författare)
- Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France.
-
- Lund-Jensen, Bengt (författare)
- KTH,Partikel- och astropartikelfysik
-
- Ohm, Christian (författare)
- KTH,Partikel- och astropartikelfysik
-
visa fler...
-
- Ripellino, Giulia (författare)
- KTH,Partikel- och astropartikelfysik
-
- Shope, David R. (författare)
- KTH,Partikel- och astropartikelfysik
-
- Strandberg, Jonas (författare)
- KTH,Partikel- och astropartikelfysik
-
- Zwalinski, L. (författare)
- CERN, CH-1211 Geneva 23, Switzerland.
-
visa färre...
-
Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France Partikel- och astropartikelfysik (creator_code:org_t)
- 2022-07-18
- 2022
- Engelska.
-
Ingår i: European Physical Journal C. - : Springer. - 1434-6044 .- 1434-6052. ; 82:7
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- This article presents the results of two studies of Higgs boson properties using the WW*(-> e nu mu nu)jj final state, based on a dataset corresponding to 36.1fb(-1) of root 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 +/- 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 a(L) = 0.91(-0.18)(+0.10)(stat.)(-0.17)(+0.09)(syst.) and a(T) = 1.2 +/- 0.4(stat.)(-0.3)(+0.2)(syst.). These coupling strengths are translated into pseudo-observables, resulting in kappa(VV) = 0.91(-0.18)(+0.10)(stat.)(-0.17)(+0.09)(syst.) and epsilon(VV) = 0.13(-0.20)(+0.28)(stat.)(-0.10)(+0.08)(syst.). All results are consistent with the Standard Model predictions.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas