Sensitivity reach on anomalous Higgs couplings via triphoton production for the post-LHC circular high-energy hadron colliders

Abstract

The potential of triphoton production to obtain limits on anomalous Higgs boson couplings at $H\gamma \gamma$ and $HZ\gamma$ vertices is studied in Standard Model Effective Field Theory (EFT) framework for the post-LHC circular high-energy hadron colliders: High Luminosity-LHC (HL-LHC), High Energy LHC (HE-LHC) and Low Energy FCC (LE-FCC) which are designed with standard configurations of 14 TeV/3 ab${}^{-1}$, 27 TeV/15 ab${}^{-1}$ and 37.5 TeV/15 ab${}^{-1}$. Madgraph in which the effective Lagrangian of the SM EFT is implemented using FeynRules and UFO framework is used to generate both background and signal events. These events are then passed through Pythia 8 for parton showering and Delphes to include realistic detector effects. After optimizing cuts on kinematics of three photons as well as the reconstructed invariant mass of the two leading photons, invariant mass of three leading photon is used to obtain constraints on the Wilson coefficients of dimension-six operators. We report the result of two dimensional scan of ${\bar{c}}_{\gamma }$ and ${\tilde{c}}_{\gamma }$ couplings at 95\% confidence level and compare with LHC results. Our obtained limits without systematic error on ${\bar{c}}_{\gamma }$ ( ${\tilde{c}}_{\gamma }$) are $[-3.15;1.41]\times 10^{-2}$ ($[-2.12;2.12]\times 10^{-2}$), $[-1.21;0.78]\times 10^{-2}$ ($[-0.98;0.98]\times 10^{-2}$) and $[-0.89;0.66]\times 10^{-2}$ ($[-0.77;0.77]\times 10^{-2}$) for HL-LHC, HE-LHC and LE-FCC, respectively.

arXiv comment16 pages, 10 figures, version accepted in Acta Physica Polonica B. arXiv admin note: text overlap with arXiv:1901.04784

References in corpus (29)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• An Introduction to PYTHIA 8.2
• FastJet user manual
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• UFO - The Universal FeynRules Output
• Constraints on the spin-parity and anomalous HVV couplings of the Higgs boson in proton collisions at 7 and 8 TeV
• Measurements of Higgs boson properties in the diphoton decay channel with 36 fb${}^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
• Robust Determination of the Higgs Couplings: Power to the Data
• Complete Higgs Sector Constraints on Dimension-6 Operators
• Anomalous Higgs Boson Production and Decay
• Phenomenology of the Higgs Effective Lagrangian via FeynRules
• Higgs coupling measurements at the LHC
• Higgs pair production in vector-boson fusion at the LHC and beyond
• Anomalous Higgs Couplings
• Combined search for anomalous pseudoscalar HVV couplings in VH production and H to VV decay
• Electroweak Higgs boson production in the standard model effective field theory beyond leading order in QCD
• Exploring SMEFT in VH with Machine Learning
• Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the $H\to \gamma \gamma$ decay channel at $\sqrt{s}=8$ TeV with the ATLAS detector
• Measurement of $VH$, $H\to b\bar{b}$ production as a function of the vector-boson transverse momentum in 13 TeV $pp$ collisions with the ATLAS detector
• Measurement of the production cross section of three isolated photons in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector
• Search for Anomalous Couplings in the Higgs Sector at LEP
• Probing Higgs boson couplings in H+$\gamma$ production at the LHC
• Testing Anomalous Higgs Couplings in Triple Photon Production at the Tevatron Collider
• Revisiting the $t\bar{t}hh$ channel at the FCC-hh
• Dimension-six operators in Higgs pair production via vector-boson fusion at the LHC

Cited by in corpus (5)

• Triphoton production at hadron colliders in NNLO QCD
• Two-Loop QCD Corrections for Three-Photon Production at Hadron Colliders
• Study on the sensitivity of the Higgs boson couplings in photon-photon collision at CLIC and muon collider
• Probing CP-violating Higgs-gauge Boson Couplings at Future Muon Collider
• Analysis of anomalous $H\gamma \gamma$ coupling in light-by-light collision at future muon collider