This Letter presents a measurement of the inclusive Higgs bo-son production cross-sections via gluon–gluon fusion (ggF) and vector-boson fusion (VBF) through the decay H→WW∗→eνμνusing 36.1fb−1of proton–proton collisions at a centre-of-mass energy of 13TeVrecorded by the ATLAS detector. Higgs boson couplings have been studied in this channel with Run-1 data by the ATLAS[1]and CMS[2]experiments and recently with Run-2 data by the CMS experiment[3]. The H→WW∗decay channel has the second-largest branching fraction and allowed the most precise Higgs boson cross-section measurements in Run-1[4]. The measured cross-section of the ggF production process probes the Higgs boson couplings to gluons and heavy quarks, while the VBF process directly probes the couplings to Wand Zbosons. The leading-order diagrams for the ggF and VBF production processes are depicted in Fig.1
Measurements of gluon–gluon fusion and vector-boson fusion Higgs boson production cross-sections in the H→W W ∗→eνμν decay channel in pp collisions at √s = 13 TeV with the ATLAS detector / De Castro , S. ; Fabbri , L. ; Gabrielli , A. ; Rinaldi , L. ; Semprini Cesari , N. ; Sioli , M. ; Villa , M. ; Zoccoli , A. ; Bellagamba , L. ; Boscherini , D. ; Bruni , A. ; Bruni , G. ; D’Amen , G. ; Giacobbe , B. ; Polini , A. ; Sbarra , C. ; Sidoti , A. ; Spighi , R. ; Franchini , M. ; Mengarelli , A. ; Romano , M. ; Valentinetti , S. ; Alberghi , G. L. ; Biondi , S. ; Fabbri , F. ; Lasagni Manghi , F; Massa , L. ; Ucchielli , G. ; Vittori , C. ; Alfonsi , F: ; Cabras , G. ; Cervelli , A. ; Giangiacomi , N. ; Negrini , M. ; ATLAS collaboration. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 789:(2019), pp. 508-529. [10.1016/j.physletb.2018.11.064]
Measurements of gluon–gluon fusion and vector-boson fusion Higgs boson production cross-sections in the H→W W ∗→eνμν decay channel in pp collisions at √s = 13 TeV with the ATLAS detector
De Castro , S.;Fabbri , L.;Gabrielli , A.;Rinaldi , L.;Semprini Cesari , N.;Sioli , M.;Villa , M.;Zoccoli , A.;Bellagamba , L.;Boscherini , D.;Bruni , A.;D’Amen , G.;Giacobbe , B.;Polini , A.;Sbarra , C.;Franchini , M.;Mengarelli , A.;Romano , M.;Valentinetti , S.;Alberghi , G. L.;Biondi , S.;Fabbri , F.;Lasagni Manghi , F;Massa , L.;Ucchielli , G.;Vittori , C.;Alfonsi , F:;Cabras , G.;Giangiacomi , N.;
2019
Abstract
This Letter presents a measurement of the inclusive Higgs bo-son production cross-sections via gluon–gluon fusion (ggF) and vector-boson fusion (VBF) through the decay H→WW∗→eνμνusing 36.1fb−1of proton–proton collisions at a centre-of-mass energy of 13TeVrecorded by the ATLAS detector. Higgs boson couplings have been studied in this channel with Run-1 data by the ATLAS[1]and CMS[2]experiments and recently with Run-2 data by the CMS experiment[3]. The H→WW∗decay channel has the second-largest branching fraction and allowed the most precise Higgs boson cross-section measurements in Run-1[4]. The measured cross-section of the ggF production process probes the Higgs boson couplings to gluons and heavy quarks, while the VBF process directly probes the couplings to Wand Zbosons. The leading-order diagrams for the ggF and VBF production processes are depicted in Fig.1| File | Dimensione | Formato | |
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