Probing Electroweak Phase Transition in Extended Singlet Scalar Model with Resonant $HH$ production in $bbZZ$ Channel using Parameterized Machine Learning

Abstract

In this paper, a collider signature of a heavy Higgs boson at $14$ TeV HL-LHC is studied, where the heavy Higgs boson decays into a pair of standard model Higgs boson, which further decays to $bbZZ$ state and subsequently to $bb{\ell }^{+}{\ell }^{-}{\nu }_{\ell }{\nu }_{\ell }$ final state. To study this, we consider singlet scalar extension of the standard model and select the parameter space and mass of the heavy Higgs boson such that it prefers a strong first-order electroweak phase transition. The study is done following the $bbZZ$ analysis of CMS Collaboration and further using parameterized machine learning for final discrimination which simplifies the training process along with an improved discrimination between signal and background over the range of benchmark points. Despite the lower branching fraction, this channel can be a potential probe of the electroweak phase transition with the data sets collected by the CMS and ATLAS experiments at the $14$ TeV HL-LHC with $3$ ${\mathrm{ab}}^{-1}$ of integrated luminosity and a production of resonant di-Higgs signal can be potentially discovered up to 490 GeV of resonance mass.

17 pages, 4 figures

References in corpus (46)

• 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
• Planck 2013 results. XVI. Cosmological parameters
• An Introduction to PYTHIA 8.2
• Asymptotic formulae for likelihood-based tests of new physics
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Electroweak baryogenesis
• The global electroweak fit at NNLO and prospects for the LHC and ILC
• CosmoTransitions: Computing Cosmological Phase Transition Temperatures and Bubble Profiles with Multiple Fields
• Singlet Higgs Phenomenology and the Electroweak Phase Transition
• A portrait of the Higgs boson by the CMS experiment ten years after the discovery
• Strong Electroweak Phase Transitions in the Standard Model with a Singlet
• A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery
• Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
• Status of the Higgs Singlet Extension of the Standard Model after LHC Run 1
• Observation of $H\to b\bar{b}$ decays and $VH$ production with the ATLAS detector
• Singlet-Catalyzed Electroweak Phase Transitions and Precision Higgs Studies
• Parameterized Machine Learning for High-Energy Physics
• 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
• Search for an additional, heavy Higgs boson in the $H\to ZZ$ decay channel at $\sqrt{s}$ = 8 TeV in $pp$ collision data with the ATLAS detector
• Vacuum Stability, Perturbativity, and Scalar Singlet Dark Matter
• Dynamics of Perturbations in Double Field Theory & Non-Relativistic String Theory
• Search for a Higgs boson in the mass range from 145 to 1000 GeV decaying to a pair of W or Z bosons
• LHC Benchmark Scenarios for the Real Higgs Singlet Extension of the Standard Model
• Cross-section measurements of the Higgs boson decaying into a pair of tau-leptons in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for Higgs boson pair production in events with two bottom quarks and two tau leptons in proton-proton collisions at sqrt(s) = 13 TeV
• Singlet-Catalyzed Electroweak Phase Transitions in the 100 TeV Frontier
• Measurements of gluon-gluon fusion and vector-boson fusion Higgs boson production cross-sections in the $H\to W{W}^{\ast }\to e\nu \mu \nu$ decay channel in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for a standard-model-like Higgs boson with a mass in the range 145 to 1000 GeV at the LHC
• Resonant Di-Higgs Production in the $b\bar{b}WW$ Channel: Probing the Electroweak Phase Transition at the LHC
• Search for resonant and nonresonant Higgs boson pair production in the bblnulnu final state in proton-proton collisions at sqrt(s) = 13 TeV
• Search for Higgs boson pair production in the $\gamma \gamma \mathrm{b}\overline{\mathrm{b}}$ final state in pp collisions at $\sqrt{s}=$ 13 TeV
• Search for resonant and non-resonant Higgs boson pair production in the $b\bar{b}{\tau }^{+}{\tau }^{-}$ decay channel in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Resonant Di-Higgs Production at Gravitational Wave Benchmarks: A Collider Study using Machine Learning
• Search for Higgs boson pair production in the $\gamma \gamma W{W}^{\ast }$ channel using $pp$ collision data recorded at $\sqrt{s}=13$ TeV with the ATLAS detector
• Di-Higgs Production in the $4b$ Channel and Gravitational Wave Complementarity
• Combination of searches for $WW$, $WZ$, and $ZZ$ resonances in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Seesaw mechanism and structure of neutrino mass matrix
• Probing a Scalar Singlet-Catalyzed Electroweak Phase Transition with Resonant Di-Higgs Production in the $4b$ Channel
• Searching for Heavier Higgs Boson via Di-Higgs Production at LHC Run-2
• LHC Search of New Higgs Boson via Resonant Di-Higgs Production with Decays into 4W
• Di-Higgs Blind Spots in Gravitational Wave Signals
• Search for resonant pair production of Higgs bosons in the bbZZ channel in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Dark and Bright Signatures of Di-Higgs Production
• Improving Parametric Neural Networks for High-Energy Physics (and Beyond)

Cited by in corpus (1)

• Investigating a strong first-order electroweak phase transition in the RxSM at future linear $e^{+}{e}^{-}$ colliders and LISA