Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton–proton collision data set recorded with the CMS detector in 2016 at s=13Te, corresponding to an integrated luminosity of 35.9fb-1. The combination is based on analyses targeting the five main Higgs boson production mechanisms (gluon fusion, vector boson fusion, and associated production with a W or Z boson, or a top quark-antiquark pair) and the following decay modes: H → γγ, Z Z , W W , ττ, b b , and μμ. Searches for invisible Higgs boson decays are also considered. The best-fit ratio of the signal yield to the standard model expectation is measured to be μ= 1.17 ± 0.10 , assuming a Higgs boson mass of 125.09Ge. Additional results are given for various assumptions on the scaling behavior of the production and decay modes, including generic parametrizations based on ratios of cross sections and branching fractions or couplings. The results are compatible with the standard model predictions in all parametrizations considered. In addition, constraints are placed on various two Higgs doublet models.

Combined measurements of Higgs boson couplings in proton–proton collisions at √s=13TeV / Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J., Dragicevic, M., Ero, J., Del Valle, A.E., Flechl, M., Fruhwirth, R., Ghete, V.M., Hrubec, J., Jeitler, M., Krammer, N., Kratschmer, I., Liko, D., Madlener, T., Mikulec, I., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 79:5(2019), p. 421. [10.1140/epjc/s10052-019-6909-y]

Combined measurements of Higgs boson couplings in proton–proton collisions at √s=13TeV

Cipriani M.;Del Re D.;Longo E.;Organtini G.;Paramatti R.;Rahatlou S.;Santanastasio F.;
2019

Abstract

Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton–proton collision data set recorded with the CMS detector in 2016 at s=13Te, corresponding to an integrated luminosity of 35.9fb-1. The combination is based on analyses targeting the five main Higgs boson production mechanisms (gluon fusion, vector boson fusion, and associated production with a W or Z boson, or a top quark-antiquark pair) and the following decay modes: H → γγ, Z Z , W W , ττ, b b , and μμ. Searches for invisible Higgs boson decays are also considered. The best-fit ratio of the signal yield to the standard model expectation is measured to be μ= 1.17 ± 0.10 , assuming a Higgs boson mass of 125.09Ge. Additional results are given for various assumptions on the scaling behavior of the production and decay modes, including generic parametrizations based on ratios of cross sections and branching fractions or couplings. The results are compatible with the standard model predictions in all parametrizations considered. In addition, constraints are placed on various two Higgs doublet models.
2019
Particle Physics; LHC; Higgs; CMS
01 Pubblicazione su rivista::01a Articolo in rivista
Combined measurements of Higgs boson couplings in proton–proton collisions at √s=13TeV / Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J., Dragicevic, M., Ero, J., Del Valle, A.E., Flechl, M., Fruhwirth, R., Ghete, V.M., Hrubec, J., Jeitler, M., Krammer, N., Kratschmer, I., Liko, D., Madlener, T., Mikulec, I., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 79:5(2019), p. 421. [10.1140/epjc/s10052-019-6909-y]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1341806
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