Abstract
We perform global fits of the Higgs boson couplings to all the 7 TeV, 8 TeV, and 13 TeV data available up to the Summer 2018. New measurements at 13 TeV extend to include the Higgs signal strengths exclusively measured in associated Higgs production with top-quark pair and the third-generation Yukawa couplings now have been established. Some important consequences emerge from the global fits. (i) The overall average signal strength of the Higgs boson stands at 2σ above the SM value (μ = 1.10 ± 0.05). (ii) For the first time the bottom-quark Yukawa coupling shows a preference of the positive sign to the negative one. (iii) The negative top-quark Yukawa coupling is completely ruled out unless there exist additional particles running in the H-γ-γ loop with contributions equal to two times the SM top-quark contribution within about 10 %. (iv) The branching ratio for nonstandard decays of the Higgs boson is now below 8.4% at the 95% confidence level.
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References
ATLAS collaboration, Observation of a new particle in the search for the standard model Higgs boson with the ATLAS detector at the LHC, Phys. Lett.B 716 (2012) 1 [arXiv:1207.7214] [INSPIRE].
CMS collaboration, Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC, Phys. Lett.B 716 (2012) 30 [arXiv:1207.7235] [INSPIRE].
K. Cheung, J.S. Lee and P.-Y. Tseng, Higgs precision (Higgcision) era begins, JHEP05 (2013) 134 [arXiv:1302.3794] [INSPIRE].
K. Cheung, J.S. Lee and P.Y. Tseng, Higgs precision analysis updates 2014, Phys. Rev.D 90 (2014) 095009 [arXiv:1407.8236].
CMS collaboration, Evidence for associated production of a Higgs boson with a top quark pair in final states with electrons, muons and hadronically decaying τ leptons at \( \sqrt{s} \) = 13 TeV, JHEP08 (2018) 066 [arXiv:1803.05485] [INSPIRE].
ATLAS collaboration, Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector, Phys. Lett.B 784 (2018) 173 [arXiv:1806.00425] [INSPIRE].
CMS collaboration, Observation of Higgs boson decay to bottom quarks, Phys. Rev. Lett.121 (2018) 121801 [arXiv:1808.08242] [INSPIRE].
ATLAS collaboration, Evidence for the H → b \( \overline{b} \)decay with the ATLAS detector, JHEP12 (2017) 024 [arXiv:1708.03299] [INSPIRE].
CMS collaboration, Observation of the Higgs boson decay to a pair of τ leptons with the CMS detector, Phys. Lett.B 779 (2018) 283 [arXiv:1708.00373] [INSPIRE].
ATLAS collaboration, Cross-section measurements of the Higgs boson decaying to a pair of tau leptons in proton-proton collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, ATLAS-CONF-2018-021 (2018).
ATLAS, CMS collaboration, Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at \( \sqrt{s} \) = 7 and 8 TeV, JHEP08 (2016) 045 [arXiv:1606.02266] [INSPIRE].
A. Juste, Standard Model Higgs boson searches at the Tevatron, in the proceedings of the Hadron Collider Physics Symposium 2012 (HCP2012), November 12–16, 2012, Kyoto, Japan (2012).
K. Herner, Studies of the Higgs boson properties at DØ, in the proceedings of the 37thInternational Conference on High Energy Physics (ICHEP 2014), July 2–9, Valencia, Spain (2014).
S. Heinemeyer et al., Handbook of LHC Higgs cross sections: 3. Higgs properties, arXiv:1307.1347 [CERN-2013-004].
LHC Higgs Cross Section Working Group collaboration, Handbook of LHC Higgs cross sections: 4. Deciphering the nature of the Higgs sector, arXiv:1610.07922 [INSPIRE].
ATLAS collaboration, Combined measurements of Higgs boson production and decay using up to 80 fb −1of proton-proton collision data at \( \sqrt{s} \) = 13 TeV collected with the ATLAS experiment, ATLAS-CONF-2019-005 (2019).
J.S. Lee et al., CPsuperH: a computational tool for Higgs phenomenology in the minimal supersymmetric standard model with explicit CP-violation, Comput. Phys. Commun.156 (2004) 283 [hep-ph/0307377] [INSPIRE].
J.S. Lee et al., CPsuperH2.0: an improved computational tool for Higgs phenomenology in the MSSM with explicit CP-violation, Comput. Phys. Commun.180 (2009) 312 [arXiv:0712.2360] [INSPIRE].
J.S. Lee et al., CPsuperH2.3: an updated tool for phenomenology in the MSSM with explicit CP-violation, Comput. Phys. Commun.184 (2013) 1220 [arXiv:1208.2212] [INSPIRE].
ATLAS collaboration, Evidence for the spin-0 nature of the Higgs boson using ATLAS data, Phys. Lett.B 726 (2013) 120 [arXiv:1307.1432] [INSPIRE].
CMS collaboration, Constraints on the spin-parity and anomalous HVV couplings of the Higgs boson in proton collisions at 7 and 8 TeV, Phys. Rev.D 92 (2015) 012004 [arXiv:1411.3441] [INSPIRE].
ATLAS collaboration, Test of CP invariance in vector-boson fusion production of the Higgs boson using the Optimal Observable method in the ditau decay channel with the ATLAS detector, Eur. Phys. J.C 76 (2016) 658 [arXiv:1602.04516] [INSPIRE].
ATLAS collaboration, Measurements of Higgs boson properties in the diphoton decay channel using 80 fb −1of pp collision data at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, ATLAS-CONF-2018-028 (2018).
CMS collaboration, Measurements of Higgs boson properties in the diphoton decay channel in proton-proton collisions at \( \sqrt{s} \) = 13 TeV, JHEP11 (2018) 185 [arXiv:1804.02716] [INSPIRE].
ATLAS collaboration, Measurements of the Higgs boson production, fiducial and differential cross sections in the 4ℓ decay channel at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, ATLAS-CONF-2018-018 (2018).
CMS collaboration, Measurements of properties of the Higgs boson in the four-lepton final state at \( \sqrt{s} \) = 13 TeV, CMS-PAS-HIG-18-001 (2018).
ATLAS collaboration, Measurement of gluon fusion and vector boson fusion Higgs boson production cross-sections in the decay channel in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, ATLAS-CONF-2018-004 (2018).
CMS collaboration, Measurements of properties of the Higgs boson decaying to a W boson pair in pp collisions at \( \sqrt{s} \) = 13 TeV, CMS-PAS-HIG-16-042 (2016).
ATLAS collaboration, Observation of H → b \( \overline{b} \)decays and V H production with the ATLAS detector, Phys. Lett.B 786 (2018) 59 [arXiv:1808.08238] [INSPIRE].
CMS Collaboration, Combined measurements of the Higgs boson’s couplings at \( \sqrt{s} \) = 13 TeV, CMS-PAS-HIG-17-031 (Combined measurements of the Higgs boson’s couplings at \( \sqrt{s} \) = 13 TeV).
CMS collaboration, Search for the standard model Higgs boson decaying to a pair of τ leptons and produced in association with a W or a Z boson in proton-proton collisions at \( \sqrt{s} \) = 13 TeV, CMS-PAS-HIG-18-007 (2018).
ATLAS collaboration, Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector, Phys. Rev.D 97 (2018) 072003 [arXiv:1712.08891] [INSPIRE].
ATLAS collaboration, Search for the standard model Higgs boson produced in association with top quarks and decaying into a b \( \overline{b} \)pair in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, Phys. Rev.D 97 (2018) 072016 [arXiv:1712.08895] [INSPIRE].
CMS collaboration, Search for ttH production in the all-jet final state in proton-proton collisions at \( \sqrt{s} \) = 13 TeV, JHEP06 (2018) 101 [arXiv:1803.06986] [INSPIRE].
CMS collaboration, Search for ttH production in the H → bb decay channel with leptonic tt decays in proton-proton collisions at \( \sqrt{s} \) = 13 TeV, JHEP03 (2019) 026 [arXiv:1804.03682] [INSPIRE].
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Cheung, K., Lee, J.S. & Tseng, PY. New emerging results in Higgs precision analysis updates 2018 after establishment of third-generation Yukawa couplings. J. High Energ. Phys. 2019, 98 (2019). https://doi.org/10.1007/JHEP09(2019)098
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DOI: https://doi.org/10.1007/JHEP09(2019)098