Combination of searches for resonant Higgs boson pair production using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

Abstract

A combination of searches for a new resonance decaying into a Higgs boson pair is presented, using up to 139 fb${}^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV recorded with the ATLAS detector at the LHC. The combination includes searches performed in three decay channels: $b\bar{b}b\bar{b}$, $b\bar{b}{\tau }^{+}{\tau }^{-}$ and $b\bar{b}\gamma \gamma$. No excess above the expected Standard Model background is observed and upper limits are set at the 95% confidence level on the production cross section of Higgs boson pairs originating from the decay of a narrow scalar resonance with mass in the range 251 GeV-5 TeV. The observed (expected) limits are in the range 0.96-600 fb (1.2-390 fb). The limits are interpreted in the Type-I Two-Higgs-Doublet Model and the Minimimal Supersymmetric Standard Model, and constrain parameter space not previously excluded by other searches.

32 pages in total, author list starting page 15, 3 figures, 0 tables, published in Phys. Rev. Lett. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HDBS-2023-17/

References in corpus (23)

• 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
• Herwig++ Physics and Manual
• Pileup subtraction using jet areas
• SusHi: A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM
• ATLAS flavour-tagging algorithms for the LHC Run 2 $pp$ collision dataset
• The decoupling limit in the Georgi-Machacek model
• Search for charged Higgs bosons decaying into a top quark and a bottom quark at $\sqrt{s}$=13 TeV with the ATLAS detector
• On the Generalized Harmonic Polylogarithms of One Complex Variable
• Search for heavy resonances decaying into a pair of $Z$ bosons in the ${\ell }^{+}{\ell }^{-}{\ell }^{\prime +}{\ell }^{\prime -}$ and ${\ell }^{+}{\ell }^{-}\nu \bar{\nu }$ final states using 139 fb${}^{-1}$ of proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• NLO QCD bottom corrections to Higgs boson production in the MSSM
• Benchmarking Di-Higgs Production in Various Extended Higgs Sector Models
• On the NLO QCD corrections to the production of the heaviest neutral Higgs scalar in the MSSM
• Search for resonant and non-resonant Higgs boson pair production in the $b\bar{b}{\tau }^{+}{\tau }^{-}$ decay channel using 13 TeV $pp$ collision data from the ATLAS detector
• Performance of the ATLAS Level-1 topological trigger in Run 2
• MSSM Higgs Benchmark Scenarios for Run 2 and Beyond: the low $\tan \beta$ region
• Configuration and performance of the ATLAS $b$-jet triggers in Run 2
• Search for resonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state using $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Search for Higgs boson pairs decaying to WW*WW*, WW*$\tau \tau$, and $\tau \tau \tau \tau$ in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for a massive scalar resonance decaying to a light scalar and a Higgs boson in the four b quarks final state with boosted topology
• Search for heavy resonances decaying into a $Z$ or $W$ boson and a Higgs boson in final states with leptons and $b$-jets in $139$fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}=13$TeV with the ATLAS detector
• Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at $\sqrt{s}=$ 13 TeV

Cited by in corpus (5)

• Searches for Higgs boson production through decays of heavy resonances
• Extracting Higgs Self-Coupling Constraints through Triple Higgs Boson Production at Future Hadron Colliders
• Fate of the scalar quartic couplings in the inert models
• Higgs Boson Searches at the LHC Beyond the Standard Model
• Probing new physics in the Boosted $HH\to b\bar{b}\gamma \gamma$ channel at the LHC