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CMS Physics Analysis Summaries

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2025-10-30
21:08
Combination of ATLAS and CMS searches for Higgs boson pair production at 13 TeV /CMS Collaboration
This note presents a combination of searches for Higgs boson pair (HH) production performed by the ATLAS and CMS Collaborations using proton-proton collision data sets recorded at $\sqrt{s}$ = 13 TeV at the LHC Run 2, corresponding to integrated luminosities ranging between 126 and 140 $\mathrm{fb^{-1}}$. The upper limit at the 95\% confidence level on the total HH production cross section corresponds to 2.5 times the standard model (SM) prediction with an expected value of 1.7 (2.8) assuming the absence (presence) of the SM HH signal. [...]
CMS-PAS-HIG-25-014.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005: PDF; Figure_006: PDF; Figure_007: PDF; Figure_008: PDF; Figure_009: PDF; Figure_010: PDF; Figure_011: PDF; Figure_012: PDF; Figure_013: PDF; Figure_014: PDF; Figure_015: PDF; Figure_016: PDF; Figure_017: PDF; Figure_018: PDF; Figure_019-a: PDF; Figure_019-b: PDF; Figure_019-c: PDF; Figure_019-d: PDF; Figure_020-a: PDF; Figure_020-b: PDF; Figure_020-c: PDF; Figure_020-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-10-29
10:44
Improved results on Higgs boson pair production in the 4b final state /CMS Collaboration
Measurements of Higgs boson pair (HH) production in the four bottom quark final state are presented using a data set of proton-proton (pp) collisions at $\sqrt{s}=13.6~\mathrm{TeV}$ collected by the CMS experiment during 2022--2023 and corresponding to an integrated luminosity of $62~\mathrm{fb}^{-1}$. Events in which each Higgs boson decay is separately reconstructed as a pair of small-radius jets (resolved), as well as events in which each $\mathrm{H}\to\mathrm{b}\bar{\mathrm{b}}$ decay is reconstructed as a single large-radius jet (merged) are analyzed exclusively. [...]
CMS-PAS-HIG-24-010.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_001-e: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_009: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_014: PDF; Figure_015-a: PDF; Figure_015-b: PDF; Figure_015-c: PDF; Figure_015-d: PDF; Figure_016-a: PDF; Figure_016-b: PDF; Figure_016-c: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Figure_017-c: PDF; Figure_017-d: PDF; Figure_018: PDF; Figure_019-a: PDF; Figure_019-b: PDF; Figure_020-a: PDF; Figure_020-b: PDF; Figure_021-a: PDF; Figure_021-b: PDF; Figure_022-a: PDF; Figure_022-b: PDF; Figure_023: PDF; Figure_024-a: PDF; Figure_024-b: PDF; Figure_024-c: PDF; Figure_024-d: PDF; Figure_025-a: PDF; Figure_025-b: PDF; Figure_026-a: PDF; Figure_026-b: PDF; Figure_027-a: PDF; Figure_027-b: PDF; Figure_028-a: PDF; Figure_028-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-10-27
14:09
Search for resonant production of pairs of dijet resonances in proton-proton collisions at sqrts = 13.6 TeV /CMS Collaboration
A search for a resonance, decaying to pairs of dijet resonances with the same mass, is conducted in final states with at least four individually resolved jets and four-jet masses above 1.6 TeV. The search is conducted using data collected by the CMS experiment, during the year 2024, in pp collisions at a center-of-mass energy of 13.6 TeV. [...]
CMS-PAS-EXO-25-004.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007: PDF; Figure_008: PDF; Figure_009: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_011: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detailed record
2025-10-24
17:49
Search for a new resonance decaying to a pair of Higgs bosons in the final state with two W bosons and two photons in pp collisions at 13 TeV /CMS Collaboration
A search for a new resonance in a $\mathrm{W}\mathrm{W}\gamma\gamma$ final state is presented, using CERN LHC proton-proton collision data collected during 2016-2018 by the CMS detector at $\sqrt{s}=13\text{ TeV}$, and corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. Both the fully hadronic ($\mathrm{W}\mathrm{W}\to\mathrm{q}\mathrm{q}\mathrm{q}\mathrm{q}$) and semileptonic decay modes ($\mathrm{W}\mathrm{W}\to\mathrm{q}\mathrm{q}\ell\nu$) of the $\mathrm{W}\mathrm{W}$ pair are considered. [...]
CMS-PAS-B2G-24-010.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006: PDF; Figure_007: PDF; Figure_008: PDF; Figure_009: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-10-22
11:27
Measurement of the Higgs boson decay width from off-shell production using the WW decay in the all-leptonic final state in pp collisions at 13 TeV /CMS Collaboration
We constrain the Higgs decay width using the off-shell production of Higgs bosons in their decay H $\to$ WW $\to 2\ell 2\nu$. The analysis uses proton-proton collision data with an integrated luminosity of $138~\mathrm{fb}^{-1}$ collected at a center-of-mass energy of $\sqrt{s}=13~\mathrm{TeV}$ by the CMS experiment at the LHC. [...]
CMS-PAS-HIG-24-011.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_003-d: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_004-d: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-10-21
09:42
Search for new physics in triple boson production at 13 TeV using the effective field theory approach /CMS Collaboration
A search for new physics in the production of three massive gauge bosons (VVV, where V is W or Z) is presented. The event selection emphasizes the ``boosted'' regime in which all three bosons have a transverse momentum above 200 GeV. [...]
CMS-PAS-SMP-24-017.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_007-d: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_009: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_011: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_012-c: PDF; Figure_012-d: PDF; Figure_012-e: PDF; Figure_012-f: PDF; Figure_013: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-10-20
11:09
Performance of the high-level hadronic tau triggers of the CMS experiment in proton-proton collisions at 13.6 TeV /CMS Collaboration
The trigger system of the CMS detector is pivotal in the acquisition of data for physics measurements and searches. Studies of final states characterized by hadronic decays of tau leptons require the reconstruction and the identification of genuine tau leptons against quark- and gluon-initiated jets in the trigger system. [...]
CMS-PAS-TAU-24-002.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_005-d: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_006-d: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_007-d: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Figure_008-d: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_009-d: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_010-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detailed record
2025-10-07
18:11
Search for nonresonant triple Higgs boson production in the six b-quark final state in proton-proton collisions at 13 TeV /CMS Collaboration
A search for nonresonant triple Higgs boson production in the six $\mathrm{b}$-quark final state is performed using data from proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment, and corresponding to an integrated luminosity of 138$~\mathrm{fb}^{-1}$. The search targets final states in which the $\mathrm{b}$ quarks from the decays of the Higgs bosons are reconstructed in small-radius or large-radius jets, resulting in topologies that are fully boosted, partially boosted, partially resolved, or fully resolved. [...]
CMS-PAS-HIG-24-012.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002: PDF; Figure_003: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-10-06
18:35
Search for microscopic black holes and sphalerons in proton-proton collisions at 13 TeV /CMS Collaboration
A search for microscopic black holes and sphalerons using proton-proton collisions at $\sqrt{s} = 13~\mathrm{TeV}$ recorded by the CMS detector during the $2016{-}2018$ data taking, and corresponding to an integrated luminosity of $138~\mathrm{~fb}^{-1}$, is presented. Two data-driven search strategies are used. [...]
CMS-PAS-EXO-24-028.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PDF; Figure_005: PDF; Figure_006: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detailed record
2025-10-02
15:46
Search for HH production decaying into two b quarks and two photons in pp collisions at 13.6 TeV with a partial CMS Run 3 dataset /CMS Collaboration
A search is conducted for the nonresonant production of a pair of Higgs bosons, where one decays into two photons and the other into two bottom quarks. The analysis is based on proton-proton collision data from the LHC at $\sqrt{s}=13.6~\mathrm{TeV}$, recorded by the CMS detector in 2022 and 2023, corresponding to an integrated luminosity of $61.9~\mathrm{fb}^{-1}$. [...]
CMS-PAS-HIG-25-007.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_004: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_006-d: PDF; Figure_006-e: PDF; Figure_006-f: PDF; Figure_007: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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