Higgs boson production cross-sections via gluon–gluon fusion and vector-boson fusion in proton–proton collisions are measured in the H→WW∗→ℓνℓν decay channel. The Large Hadron Collider delivered proton–proton collisions at a centre-of-mass energy of 13TeV between 2015 and 2018, which were recorded by the ATLAS detector, corresponding to an integrated luminosity of 140fb-1. The total cross-sections for Higgs boson production by gluon–gluon fusion and vector-boson fusion times the H→WW∗ branching ratio are measured to be 12.4-1.2+1.3pb and 0.79-0.16+0.18pb, respectively, in agreement with the Standard Model predictions. Higgs boson production is further characterised through measurements of Simplified Template Cross-Sections in a total of fifteen kinematic fiducial regions. A new scheme of kinematic fiducial regions has been introduced to enhance the sensitivity to CP-violating effects in Higgs boson interactions. Both schemes are used to constrain CP-even and CP-odd dimension-six operators in the Standard Model effective field theory

Measurements of Higgs boson production via gluon–gluon fusion and vector-boson fusion using H→WW∗→ℓνℓν decays in pp collisions with the ATLAS detector and their effective field theory interpretations / Zwalinski, L., Zormpa, O., Zorbas, T.G., Zografos, A., Zoch, K., Zoccoli, A., Zivkovic, L., Ziolkowski, M., Zinsser, J., Zimine, N.I., Zhukov, K., Zhuang, X., Zhu, Y., Zhu, Y., Zhu, X., Zhu, J., Zhu, C.G., Zhou, Y., Zhou, Y., Zhou, Y., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 85:12(2025). [10.1140/epjc/s10052-025-14761-2]

Measurements of Higgs boson production via gluon–gluon fusion and vector-boson fusion using H→WW∗→ℓνℓν decays in pp collisions with the ATLAS detector and their effective field theory interpretations

Rossi E.;Massarotti P.;Iengo P.;Della Pietra M.;D'Avanzo A.;Cirotto F.;Casolaro P.;Canale V.;Aloisio A.;
2025

Abstract

Higgs boson production cross-sections via gluon–gluon fusion and vector-boson fusion in proton–proton collisions are measured in the H→WW∗→ℓνℓν decay channel. The Large Hadron Collider delivered proton–proton collisions at a centre-of-mass energy of 13TeV between 2015 and 2018, which were recorded by the ATLAS detector, corresponding to an integrated luminosity of 140fb-1. The total cross-sections for Higgs boson production by gluon–gluon fusion and vector-boson fusion times the H→WW∗ branching ratio are measured to be 12.4-1.2+1.3pb and 0.79-0.16+0.18pb, respectively, in agreement with the Standard Model predictions. Higgs boson production is further characterised through measurements of Simplified Template Cross-Sections in a total of fifteen kinematic fiducial regions. A new scheme of kinematic fiducial regions has been introduced to enhance the sensitivity to CP-violating effects in Higgs boson interactions. Both schemes are used to constrain CP-even and CP-odd dimension-six operators in the Standard Model effective field theory
2025
Measurements of Higgs boson production via gluon–gluon fusion and vector-boson fusion using H→WW∗→ℓνℓν decays in pp collisions with the ATLAS detector and their effective field theory interpretations / Zwalinski, L., Zormpa, O., Zorbas, T.G., Zografos, A., Zoch, K., Zoccoli, A., Zivkovic, L., Ziolkowski, M., Zinsser, J., Zimine, N.I., Zhukov, K., Zhuang, X., Zhu, Y., Zhu, Y., Zhu, X., Zhu, J., Zhu, C.G., Zhou, Y., Zhou, Y., Zhou, Y., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 85:12(2025). [10.1140/epjc/s10052-025-14761-2]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/1026938
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