Publication: Combined measurements of Higgs boson couplings in proton–proton collisions at √s=13Te
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2019-05-01
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Abstract
© 2019, CERN for the benefit of the CMS collaboration.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.
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Fizik, Astronomi ve Astrofizik, Temel Bilimler, Mühendislik ve Teknoloji, Physics, Astronomy and Astrophysics, Natural Sciences, Engineering and Technology, Mühendislik, Bilişim ve Teknoloji (ENG), Temel Bilimler (SCI), Mühendislik, Uzay bilimi, ASTRONOMİ VE ASTROFİZİK, Engineering, Computing & Technology (ENG), Natural Sciences (SCI), ENGINEERING, SPACE SCIENCE, ASTRONOMY & ASTROPHYSICS, Mühendislik (çeşitli), Fizik Bilimleri, Fizik ve Astronomi (çeşitli), Engineering (miscellaneous), Physical Sciences, Physics and Astronomy (miscellaneous)
Citation
Sirunyan A., Tumasyan A., Adam W., Ambrogi F., Asilar E., Bergauer T., Brandstetter J., Dragicevic M., Erö J., Del Valle A. E. , et al., "Combined measurements of Higgs boson couplings in proton–proton collisions at √s=13Te", European Physical Journal C, cilt.79, sa.5, 2019