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CMS Physics Analysis Summaries

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2026-03-18
12:44
Search for Higgs boson decays into two neutral scalars with unequal masses in final states with b quarks and tau leptons /CMS Collaboration
A search for Higgs boson decays to a pair of neutral scalars $\phi_1$ and $\phi_2$ with unequal masses is performed in final states with b quarks and $\tau$ leptons. Depending on the masses of the neutral scalars, $\phi_2$ can undergo a cascade decay into a pair of $\phi_1$ scalars. [...]
CMS-PAS-NPS-25-003.- Geneva : CERN, 2026 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_002-d: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_004-d: PDF; Figure_004-e: PDF; Figure_004-f: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_005-d: PDF; Figure_005-e: PDF; Figure_005-f: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_006-d: PDF; Figure_006-e: 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_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_009-d: PDF; Figure_009-e: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_011-c: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_012-c: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_013-c: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Figure_014-c: PDF; Figure_014-d: PDF; Figure_014-e: PDF; Figure_015-a: PDF; Figure_015-b: PDF; Figure_015-c: PDF; Figure_015-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2026-03-18
11:25
Measurement of single top and ttbar production cross sections in association with a photon in proton-proton collisions at sqrt(s) = 13 TeV /CMS Collaboration
Measurements of fiducial inclusive and differential cross sections for photon-associated production of single top quarks $\mathrm{t}\gamma\mathrm{q}$ and top quark pairs $\mathrm{t\bar{t}}\gamma$ are performed in proton--proton collisions at a center-of-mass energy of 13$~\mathrm{TeV}$. A sample of events is selected, containing a single isolated electron or muon, an isolated photon, and at least two jets, including one identified as originating from a $\mathrm{b}$ quark. [...]
CMS-PAS-TOP-25-003.- Geneva : CERN, 2026 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: 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_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_008-e: PDF; Figure_008-f: PDF; Figure_008-g: PDF; Figure_008-h: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_009-d: PDF; Figure_009-e: PDF; Figure_009-f: PDF; Figure_009-g: PDF; Figure_009-h: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2026-03-18
08:55
Upsilon fragmentation in jets /CMS Collaboration
A measurement of the fragmentation properties of $\Upsilon(\mathrm{nS})$ mesons inside jets using $138~\mathrm{fb}^{-1}$ of proton-proton collisions at $\sqrt{s} = 13$ TeV is presented. The $\Upsilon(\mathrm{nS})$ mesons are reconstructed via their decays to pairs of oppositely charged muons and are associated with anti-$k_{\mathrm{T}}$ jets if both muons are clustered among the jet constituents and the angular distance between the $\Upsilon(\mathrm{nS})$ candidate and the jet axis is smaller than the jet distance parameter, $R = 0.4$. [...]
CMS-PAS-SMP-25-005.- Geneva : CERN, 2026 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-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_006-d: PDF; Figure_006-e: PDF; Figure_006-f: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_007-d: PDF; Figure_007-e: PDF; Figure_007-f: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Figure_008-d: PDF; Figure_008-e: PDF; Figure_008-f: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2026-03-18
08:54
Search for resonant and nonresonant production of pairs of dijet resonances with b jets in the final state in proton-proton collisions at $\sqrt{s} = 13~\mathrm{TeV}$ /CMS Collaboration
A search is presented for pairs of dijet resonances with identical mass, each containing one jet originating from a b quark and one jet from a light flavor quark. The search uses a data sample corresponding to an integrated luminosity of 138 fb$^{-1}$ collected by the CMS detector in proton-proton collisions at $\sqrt{s}=13$ TeV. [...]
CMS-PAS-EXO-24-039.- Geneva : CERN, 2026 Figure_001-a: PDF; Figure_001-b: 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: PDF; Figure_011: PDF; Figure_012: PDF; Figure_013: PDF; Figure_014: PDF; Figure_015: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2026-03-18
08:54
Search for new charged gauge bosons in the e/$\mu$ + p$_\mathrm{T}^\mathrm{miss}$ channel using pp collisions at $\sqrt{s} = 13.6~\mathrm{TeV}$ /CMS Collaboration
A search for physics beyond the standard model in final states with an electron or muon and missing transverse momentum is presented. The analysis uses data from proton-proton collisions at a centre-of-mass energy of $13.6~\mathrm{TeV}$, collected with the CMS detector at the LHC in 2022 and 2023 and corresponding to an integrated luminosity of $62~\mathrm{fb}^{-1}$. [...]
CMS-PAS-EXO-24-021.- Geneva : CERN, 2026 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: 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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2026-03-18
08:54
Search for pair production of scalar leptoquarks decaying to electrons and quarks in proton-proton collisions at sqrt(s) = 13 TeV /CMS Collaboration
A search for the pair production of first-generation leptoquarks is performed using proton-proton collision data recorded at $13~\mathrm{TeV}$ center-of-mass energy with the CMS detector at the LHC. The data correspond to an integrated luminosity of $138~\mathrm{fb}^{-1}$ and were collected during the full LHC Run 2. [...]
CMS-PAS-EXO-24-019.- Geneva : CERN, 2026 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_006: PDF; Figure_007: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2026-03-18
08:54
Search for dark photon bremsstrahlung by muons in proton-proton collisions at sqrt(s) = 13 TeV /CMS Collaboration
A search for dark bremsstrahlung interactions between muons from Z boson decay and the CMS endcap calorimeters is presented. The search is performed with the CMS detector at the CERN LHC using a proton-proton collision data sample at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 59.6 fb$^{-1}$. [...]
CMS-PAS-EXO-23-008.- Geneva : CERN, 2026 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005: PDF; Figure_006: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2026-03-18
08:54
Search for soft unclustered energy patterns in pp collisions at 13 TeV using CMS data scouting /CMS Collaboration
A search for soft unclustered energy patterns (SUEPs) is conducted using proton-proton collision data corresponding to an integrated luminosity of $127~\mathrm{fb}^{-1}$ at a center-of-mass energy of 13 TeV, collected via the data scouting stream of the CMS experiment at the LHC. The scouting strategy records only the results of the trigger-level reconstruction in order to enable a lower threshold on the hadronic activity, increasing the acceptance for SUEP signatures, which are predicted by hidden valley models with a large 't Hooft coupling. [...]
CMS-PAS-EXO-23-001.- Geneva : CERN, 2026 Figure_001: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_004: PDF; Figure_005: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2026-03-18
08:54
Search for single production of a vector-like B' quark decaying to tW in the single-lepton final state /CMS Collaboration
A search is presented for the single production of a narrow-width vector-like B' quark that decays to a t quark and a W boson, with one of the decay products yielding an electron or muon. The data were collected from 2016 to 2018 by the CMS experiment at the LHC in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. [...]
CMS-PAS-B2G-24-013.- Geneva : CERN, 2026 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PNG; Figure_005: PDF; Figure_006: 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_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2026-03-18
08:29
First measurements of vector boson scattering in leptonic WW and WZ diboson events at sqrts = 13.6 TeV /CMS Collaboration
The production cross sections of same-sign $\mathrm{W}\mathrm{W}$ and $\mathrm{W}\mathrm{Z}$ boson pairs in association with two jets in proton-proton collisions are measured at $\sqrt{s}$ = 13.6 TeV. The data sample corresponds to an integrated luminosity of $171~\mathrm{fb}^{-1}$, collected with the CMS detector during 2022--2024. [...]
CMS-PAS-SMP-25-013.- Geneva : CERN, 2026 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_003-e: 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_005-e: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_006-d: PDF; Figure_006-e: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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