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CMS Physics Analysis Summaries

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2025-04-24
23:27
Constraining low-x gluon densities with low-$p_\mathrm{T}$ $\mathrm{D}^0$ meson production in ultraperipheral lead-lead collisions at 5.36 TeV /CMS Collaboration
This analysis presents a rapidity-differential measurement of low transverse momentum ($p_{\mathrm{T}}$) $\rm D^{0}$ meson production in ultraperipheral lead-lead collisions at $\sqrt{s_{_{NN}}} = 5.36~\mathrm{TeV}$. The study is performed in the $\rm D^{0}$ meson $p_{\mathrm{T}}$ range of $2 < p_{\mathrm{T}} < 5~\mathrm{GeV}$ and in intervals of $\rm D^{0}$ meson rapidity $-2 < y < 2$. [...]
CMS-PAS-HIN-25-002.- Geneva : CERN, 2025 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_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006: PDF; Figure_007: PDF; Figure_008: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-04-23
22:05
Search for pair production of heavy resonances in photon plus large-radius jets final states in pp collisions at 13 TeV /CMS Collaboration
We present a search for the pair production of heavy spin-3/2 or spin-1/2 resonances ($\mathrm{t}^{*}$) in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$. We use data collected by the CMS detector at the CERN LHC from 2016 to 2018, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. [...]
CMS-PAS-B2G-24-006.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_003-d: PDF; Figure_003-e: PDF; Figure_003-f: PDF; Figure_004-a: PDF; Figure_004-b: 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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2025-04-22
22:05
Search for the production of a Higgs boson pair in association with two top quarks in final states with photons /CMS Collaboration
A search for Higgs boson pair production in association with a pair of top quarks ($\mathrm{t}\overline{\mathrm{t}}\mathrm{HH}$) targeting final states containing two photons and multiple jets or leptons is presented. The analysis is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb$^{-1}$. [...]
CMS-PAS-HIG-23-004.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005: PDF; Figure_006: PDF; Figure_007: PDF; Figure_008: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-04-14
15:27
Search for low-mass hidden valley dark showers with displaced dimuons in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard model particles with a high branching fraction to muons. [...]
CMS-PAS-EXO-24-008.- 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-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_006-f: PDF; Figure_007-a: PDF; Figure_007-b: 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)

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2025-04-14
09:50
Combined measurements and interpretations of Higgs boson production and decay at sqrt(s)=13 TeV /CMS Collaboration
Combined measurements of Higgs boson production and decay rates are presented. The analyses included use proton-proton collision data recorded by the CMS experiment at $\sqrt{s}=13~\mathrm{TeV}$ from 2016 to 2018, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. [...]
CMS-PAS-HIG-21-018.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006: PDF; Figure_007: PDF; Figure_008: PDF; Figure_009: PDF; Figure_010: PDF; Figure_011: PDF; Figure_012: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_014: PDF; Figure_015: PDF; Figure_016: PDF; Figure_017: PDF; Figure_018: PDF; Figure_019: PDF; Figure_020: PDF; Figure_021: PDF; Figure_022: PDF; Figure_023-a: PDF; Figure_023-b: PDF; Figure_024-a: PDF; Figure_024-b: PDF; Figure_025-a: PDF; Figure_025-b: PDF; Figure_026: PDF; Figure_027: PDF; Figure_028: PDF; Figure_029: PDF; Figure_030: PDF; Figure_031: PDF; Figure_032: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-04-11
19:29
Search for a heavy resonance produced in association with and decaying to a tt pair in the single lepton final state in proton-proton collisions at sqrt s= 13 TeV with the CMS detector /CMS Collaboration
A search for a top-philic $Z'$ boson in the final state with one electron or muon and jets is presented. The $Z'$ boson is produced in association with and decays to a top quark-antiquark pair, coupling exclusively to top quarks. [...]
CMS-PAS-B2G-24-009.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002-a: PNG; Figure_002-b: PNG; Figure_003-a: PNG; Figure_003-b: PNG; Figure_003-c: PNG; Figure_003-d: PNG; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_004-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-04-10
10:13
Search for Z' bosons decaying into charginos in final states with two oppositely charged leptons and missing transverse momentum /CMS Collaboration
A search for massive leptophobic Z' bosons decaying into a pair of charginos at the CERN LHC with the CMS detector is presented. The final state consists of two oppositely charged leptons and missing transverse momentum. [...]
CMS-PAS-SUS-23-006.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_002-d: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: 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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2025-04-08
22:36
Spin and symmetry properties of all-charm tetraquarks /CMS Collaboration
The traditional quark model accounts for the existence of baryons, like protons and neutrons, which consist of three quarks, as well as mesons, composed of a quark and antiquark pair. Only recently has substantial evidence started to accumulate for exotic states composed of four or five quarks or antiquarks. [...]
CMS-PAS-BPH-24-002.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PDF; Figure_005: 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_006-g: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_007-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-04-07
15:16
Observation of X(6900) and evidence of X(7100) in the psi(2S)Jpsi to 4mu mass spectrum in pp collisions at CMS /CMS Collaboration
A search is performed for structures near threshold in the $J/\psi\psi(2S) \rightarrow \mu^{+} \mu^{-} \mu^{+} \mu^{-}$ channel using a sample of proton-proton collisions at $\sqrt{s} = 13.0~\mathrm{TeV}$ and $13.6~\mathrm{TeV}$ recorded by the CMS detector at the CERN LHC. The data correspond to an integrated luminosity of about $314~\mathrm{fb}^{-1}$. [...]
CMS-PAS-BPH-22-004.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_002: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

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2025-04-07
14:29
Search for compressed electroweakinos with low-momentum isolated tracks /CMS Collaboration
A search is presented for higgsino dark matter (DM) in final states with a low momentum (soft), isolated track and large missing transverse momentum. In the minimal supersymmetric standard model (MSSM), charginos are most often produced in association with a nearly mass-degenerate neutralino or another chargino, and predominantly decay into the lightest neutralino (DM candidate) and a soft pion. For a mass difference $\Delta m^{\pm}$ less than $1$ $\mathrm{GeV}$, a discernible displacement of the pion's track with respect to the primary vertex can arise, reaching up to about $1$ $\mathrm{cm}$ for the smallest allowed $\Delta m^{\pm}$. [...]
CMS-PAS-SUS-24-012.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: 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_003-d: PDF; Figure_003-e: PDF; Figure_003-f: 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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