#CMSpaper: Search for heavy scalar resonances decaying to Lorentz-boosted Higgs and Higgs-like bosons in the bb4q final state at √s = 13 TeV (arXiv:2602.00273)
https://arxiv.org/abs/2602.00273 #NewPhysics 
Search for heavy scalar resonances decaying to Lorentz-boosted Higgs and Higgs-like bosons in the $\mathrm{b\bar{b}}$4q final state at $\sqrt{s}$ = 13 TeV
A search is performed for a heavy scalar resonance X decaying to a Higgs boson (H) and a Higgs-like scalar boson (Y) in the two bottom quark (H $\to$ $\mathrm{b\bar{b}}$) and four quark (Y $\to$ VV $\to$ 4q) final state, where V denotes a W or Z boson. Masses of the X between 900 and 4000 GeV and the Y between 60 and 2800 GeV are considered. The search is performed in data collected by the CMS experiment at the CERN LHC from proton-proton collisions at 13 TeV center-of-mass energy, with a data set corresponding to a total integrated luminosity of 138 fb$^{-1}$. It targets the Lorentz-boosted regime, in which the products of the H $\to$ $\mathrm{b\bar{b}}$ decay can be reconstructed as a single large-area jet, and those from the Y $\to$ VV $\to$ 4q decay as either one Y $\to$ 4q or two V to $\mathrm{q\bar{q}}$ jets. Jet identification and mass reconstruction exploit machine-learning tools, including a novel attention-based "particle transformer" for Y $\to$ 4q identification. No significant excess is observed in the data above the standard model background expectation. Upper limits on the product of production cross section and branching fraction as low as 0.2 fb are derived at 95% confidence level for various mass hypotheses. This is the first search at the LHC for scalar resonances in the all-hadronic $\mathrm{b\bar{b}}$VV decay channel.
#CMSpaper soon on arXiv: Search for heavy scalar resonances decaying to Lorentz-boosted Higgs and Higgs-like bosons in the bb4q final state at √s = 13 TeV (CERN-EP-2026-001)
https://cds.cern.ch/record/2953726 #NewPhysics Search for heavy scalar resonances decaying to Lorentz-boosted Higgs and Higgs-like bosons in the $ \mathrm{b}\overline{\mathrm{b}}4\mathrm{q} $ final state at $ \sqrt{s} = $ 13 TeV
A search is performed for a heavy scalar resonance ($\mathrm{X}$) decaying to a Higgs boson ($\mathrm{H}$) and a Higgs-like scalar boson ($\mathrm{Y}$) in the two bottom quark ($ \mathrm{H}\to\mathrm{b}\overline{\mathrm{b}} $) and four quark ($ \mathrm{Y} \to\mathrm{V}\mathrm{V}\to4\mathrm{q} $) final state, where $\mathrm{V}$ denotes a $\mathrm{W}$ or $\mathrm{Z}$ boson. Masses of the $\mathrm{X}$ between 900 and 4000 GeV and the $\mathrm{Y}$ between 60 and 2800 GeV are considered. The search is performed in data collected by the CMS experiment at the CERN LHC from proton-proton collisions at 13 TeV center-of-mass energy, with a data set corresponding to a total integrated luminosity of 138 fb$ ^{-1} $. It targets the Lorentz-boosted regime, in which the products of the $ \mathrm{H}\to\mathrm{b}\overline{\mathrm{b}} $ decay can be reconstructed as a single large-area jet, and those from the $ \mathrm{Y} \to\mathrm{V}\mathrm{V}\to4\mathrm{q} $ decay as either one $ \mathrm{Y} \to4\mathrm{q} $ or two $ \mathrm{V}\to\mathrm{q}\overline{\mathrm{q}} $ jets. Jet identification and mass reconstruction exploit machine-learning tools, including a novel attention-based ``particle transformer'' for $ \mathrm{Y} \to4\mathrm{q} $ identification. No significant excess is observed in the data above the standard model background expectation. Upper limits on the product of production cross section and branching fraction as low as 0.2fb$^{-1}$ are derived at 95\% confidence level for various mass hypotheses. This is the first search at the LHC for scalar resonances in the all-hadronic $ \mathrm{b}\overline{\mathrm{b}}\mathrm{V}\mathrm{V} $ decay channel.
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#CMSpaper: Search for heavy resonances decaying into two Higgs bosons in the bb̅τ⁺τ⁻ final state in proton-proton collisions at √s = 13 TeV (arXiv:2601.20011)
https://arxiv.org/abs/2601.20011 #NewPhysics 
Search for heavy resonances decaying into two Higgs bosons in the $\mathrm{b\bar{b}}τ^+τ^-$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A search is presented for massive narrow-width resonances in the mass range of 1$-$4.5 TeV, decaying into pairs of Higgs bosons (HH). The search uses proton-proton collision data at a center-of-mass energy of 13 TeV collected with the CMS detector at the CERN LHC during 2016$-$2018, corresponding to an integrated luminosity of 138 fb$^{-1}$. The analysis targets final states where one Higgs boson decays into a pair of bottom quarks and the other into a pair of tau leptons, X $\to$ HH $\to$ $\mathrm{b\bar{b}}τ^+τ^-$. It uses a single large jet to reconstruct the H $\to$ $\mathrm{b\bar{b}}$ decay, while the H $\to$ $τ^+τ^-$ decay products can either be contained within a single large jet or appear as two isolated tau leptons. The observed data are consistent with standard model background expectations. Upper limits at 95% confidence level are set on the production cross section for resonant HH production for masses between 1 and 4.5 TeV. This analysis sets the most sensitive limits to date on X $\to$ HH $\to$ $\mathrm{b\bar{b}}τ^+τ^-$ decays in the mass range of 1.4 to 4.5 TeV.
#CMSpaper: Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at √s = 13.6 TeV (arXiv:2601.20063)
https://arxiv.org/abs/2601.20063 #NewPhysics #CMSpaper soon on arXiv: Search for heavy resonances decaying into two Higgs bosons in the bb̅τ⁺τ⁻ final state in proton-proton collisions at √s = 13 TeV (CERN-EP-2025-299)
https://cds.cern.ch/record/2953565 #NewPhysics Search for heavy resonances decaying into two Higgs bosons in the $\mathrm{b\bar{b}}\tau^+\tau^-$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A search is presented for massive narrow-width resonances in the mass range of 1$-$4.5 TeV, decaying into pairs of Higgs bosons (HH). The search uses proton-proton collision data at a center-of-mass energy of 13 TeV collected with the CMS detector at the CERN LHC during 2016$-$2018, corresponding to an integrated luminosity of 138 fb$^{-1}$. The analysis targets final states where one Higgs boson decays into a pair of bottom quarks and the other into a pair of tau leptons, X $\to$ HH $\to$ $\mathrm{b\bar{b}}\tau^+\tau^-$. It uses a single large jet to reconstruct the H $\to$ $\mathrm{b\bar{b}}$ decay, while the H $\to$ $\tau^+\tau^-$ decay products can either be contained within a single large jet or appear as two isolated tau leptons. The observed data are consistent with standard model background expectations. Upper limits at 95\% confidence level are set on the production cross section for resonant HH production for masses between 1 and 4.5 TeV. This analysis sets the most sensitive limits to date on X $\to$ HH $\to$ $\mathrm{b\bar{b}}\tau^+\tau^-$ decays in the mass range of 1.4 to 4.5 TeV.
#CMSpaper soon on arXiv: Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at √s = 13.6 TeV (CERN-EP-2025-301)
https://cds.cern.ch/record/2953564 #NewPhysics Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at $ \sqrt{s} = $ 13.6 TeV
A search for heavy long-lived charged particles at the LHC is presented. Particles interacting with the CMS muon detector across several bunch crossings are searched for using a data sample of proton-proton collisions at $ \sqrt{s}= $ 13.6 TeV collected with the CMS detector in 2024, corresponding to an integrated luminosity of 3.7 fb$ ^{-1} $. This is the first search relying on the novel level-1 trigger scouting data set collected without any trigger selection, allowing correlations between bunch crossings to be analyzed. The results are interpreted as upper limits on the cross sections of several benchmark processes with pair production of heavy long-lived charged particles. Upper limits on the fiducial cross section of a heavy long-lived charged particle with $ p_{\mathrm{T}} > $ 500 GeV and $ |\eta| < $ 0.83 are also set in different ranges of $ \beta=v/c $. This analysis is a crucial proof of concept for the level-1 trigger data scouting system and complements existing searches for heavy long-lived charged particles by extending the sensitivity to lower $ \beta $ values.
#CMSpaper: Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at √s = 13 TeV (arXiv:2601.17576)
https://arxiv.org/abs/2601.17576 #NewPhysics 
CMS Publications
Protyus A. Gendher