Aad G.Abbott B.Abbott D. C.Abud A. AbedAbeling K.Abidi S. H.Aboulhorma A.Abramowicz H.Abreu H.Abulaiti Y.Abusleme Hoffman A. C.Acharya B. S.Achkar B.Adam L.Bourdarios C. AdamAdamczyk L.Adamek L.Addepalli S. V.Adelman J.Adiguzel A.Adorni S.Adye T.Affolder A. A.Afik Y.Agaras M. N.Agarwala J.Aggarwal A.Agheorghiesei C.Aguilar-Saavedra J. A.Ahmad A.Ahmadov F.Ahmed W. S.Ai X.Aielli G.Aizenberg I.Akbiyik M.Akesson T. P. A.Akimov A. V.Al Khoury K.Alberghi G. L.2025-05-192025-05-192023/08/082470-0010http://dx.doi.org/10.1103/PhysRevD.108.032005https://publicacionesabiertas.userena.cl/handle/123456789/280Higgs boson production via gluon-gluon fusion and vector-boson fusion in proton-proton collisions is measured in the H & RARR; WW* & RARR; ev & mu;v decay channel. The Large Hadron Collider delivered proton-proton collisions at a center-of-mass energy of 13 TeV between 2015 and 2018, which were recorded by the ATLAS detector, corresponding to an integrated luminosity of 139 fb-1. The total cross sections for Higgs boson production by gluon-gluon fusion and vector-boson fusion times the H & RARR; WW* branching ratio are measured to be 12.0 1 1.4 and 0.75 thorn 0.19 -0.16 pb, respectively, in agreement with the Standard Model predictions of 10.4 1 0.6 and 0.81 1 0.02 pb. Higgs boson production is further characterized through measurements of Simplified Template Cross Sections in a total of 11 kinematic fiducial regions.LEADING ORDER QCD, BROKEN SYMMETRIES, PAIR PRODUCTION, PLUS PLUS, STRAHLUNG, PROGRAM, MASSArticle