Typ

Artikel in einem Journal

Gebiet

ATLAS

Autor

G. Aad, …, Tobias Klingl, Philip Bechtle et al. (für die ATLAS Collaboration-Kollaboration)

Titel

Higgs boson production cross-section measurements and their EFT interpretation in the 4lepton decay channel at sorts 13 TeV with the ATLAS detector

Datum

2020-04

Reportnummer

CERN-EP-2020-034

Kurzfassung

Higgs boson properties are studied in the four-lepton decay channel (where lepton is e, mu) using 139 fb−1 of proton-proton collision data recorded at sorts 13 TeV by the ATLAS experiment at the Large Hadron Collider. The inclusive cross-section times branching ratio for H→ZZ∗ decay is measured to be 1.34±0.12 pb for a Higgs boson with absolute rapidity below 2.5, in good agreement with the Standard Model prediction of 1.33±0.08 pb. Cross-sections times branching ratio are measured for the main Higgs boson production modes in several exclusive phase-space regions. The measurements are interpreted in terms of coupling modifiers and of the tensor structure of Higgs boson interactions using an effective field theory approach. Exclusion limits are set on the CP-even and CP-odd `beyond the Standard Model' couplings of the Higgs boson to vector bosons, gluons and top quarks.

Link

https://arxiv.org/abs/2004.03447