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CMS Physics Analysis Summaries

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2026-03-11
21:50
Study of ZZ and ZH production in the $\mathrm{bb}\tau\tau$ final state and search for high-mass spin-0 and spin-1 resonances /CMS Collaboration
A study is presented for the production of pairs of Z bosons (ZZ) and for the associated production of a Z boson and a Higgs boson (H) in final states containing two b quarks and two tau leptons. Both resonant and nonresonant production mechanisms are investigated. [...]
CMS-PAS-B2G-25-004.- Geneva : CERN, 2026 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008: PDF; Figure_009: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije
2026-03-11
16:38
Search for resonances in events with four top quarks decaying to two leptons and jets with the CMS experiment /CMS Collaboration
A search for a heavy resonance in four top quark events is presented, and interpreted in models featuring a new vector, scalar, or pseudoscalar boson which interacts exclusively with top quarks. Proton-proton collision data at centre-of-mass energies of $13.0~\mathrm{TeV}$ and $13.6~\mathrm{TeV}$ are analysed, corresponding to integrated luminosities of $138~\mathrm{fb}^{-1}$ and $35~\mathrm{fb}^{-1}$, respectively. [...]
CMS-PAS-B2G-25-005.- Geneva : CERN, 2026 Figure_001: PDF; Figure_002: PDF; Figure_003: 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; Figure_005-c: PDF; Figure_005-d: 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_009-d: PDF; Figure_010: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije
2026-03-03
10:10
Triple-differential measurement of Z+jet production in proton-proton collisions at a center-of-mass energy of 13 TeV /CMS Collaboration
A measurement is presented of the differential production cross section of $\mathrm{Z}(\to\mu\mu)$+jet events using proton-proton collision data recorded at a center-of-mass energy of $13~\mathrm{TeV}$ by the CMS experiment at the CERN LHC. The data, collected in the years 2016--2018, correspond to an integrated luminosity of $138~\mathrm{fb}^{-1}$. [...]
CMS-PAS-SMP-24-010.- 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_004-c: 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_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Figure_009: PDF; Figure_010: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_011-c: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije
2026-02-04
12:44
HH2b2W in di-leptonic channel /CMS Collaboration
A search for non-resonant Higgs boson pair production is presented, targeting final states where one Higgs boson decays to a pair of bottom quarks and the other Higgs boson decays to two $\mathrm{W}$ bosons, both of which decay leptonically (to an electron or a muon and a neutrino). For the first time, the search is conducted with proton-proton collision data from the LHC at $\sqrt{s}=13.6~\text{TeV}$. [...]
CMS-PAS-HIG-25-018.- Geneva : CERN, 2026 Figure_001: 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-a: PDF; Figure_006-b: PDF; Figure_007: PDF; Figure_008: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije
2026-01-15
09:54
Combination of ATLAS and CMS measurements of the azimuthal spin correlation variable in dilepton top quark pair events at 13 TeV /CMS Collaboration
This document presents a combination of measurements sensitive to $\mathrm{t\bar{t}}$ spin correlations. Measurements were performed by ATLAS and CMS in the dilepton channel, using $36~\mathrm{fb}^{-1}$ of 13 TeV proton-proton data. [...]
CMS-PAS-TOP-22-004.- Geneva : CERN, 2026 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_006-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije
2025-12-17
19:12
Observation of the rare decay of the eta meson to a muon pair and an electron pair /CMS Collaboration
A first observation of the rare decay $\eta \to \mu^+\mu^-\mathrm{e^+e^-}$ with significance well in excess of 5 standard deviations is reported by the CMS Collaboration at the CERN LHC. The result is based on a data sample corresponding to an integrated luminosity of 38.0 $\mathrm{fb^{-1}}$, acquired in 2022 using a special high-rate dimuon trigger. [...]
CMS-PAS-BPH-24-001.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije
2025-11-27
11:38
Study of spin correlations in Higgs boson decays to four leptons at CMS /CMS Collaboration
Kinematic distributions in Higgs boson decay to four leptons $\mathrm{H} \to 4\ell$ are studied using matrix element techniques, optimizing sensitivity to the tensor structure of Higgs boson interactions and spin correlations in the decay process. The data were collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 138 and 62 fb$^{-1}$ at proton-proton center of mass energies of 13 and 13.6 TeV, respectively, covering the 2016--2018 and 2022--2023 data-taking periods. [...]
CMS-PAS-HIG-25-011.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: 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_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_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: 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; Figure_014: PDF; Figure_015: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije
2025-11-27
10:11
Search for soft unclustered energy patterns in association with a W or Z boson in proton-proton collisions at 13 TeV /CMS Collaboration
A search for soft unclustered energy patterns (SUEPs) produced in association with a $\mathrm{W}$ or $\mathrm{Z}$ boson is presented. The analysis is based on proton-proton collision data corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$ collected between 2016 and 2018 with the CMS detector at the LHC. [...]
CMS-PAS-EXO-25-007.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002: PDF; Figure_003: 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)

Detaljnije
2025-11-15
18:33
Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) differential production cross sections in pp collisions at 13.6 TeV /CMS Collaboration
The production cross sections of the $\Upsilon$(1S), $\Upsilon$(2S), and $\Upsilon$(3S) mesons are measured in proton-proton collisions at $\sqrt{s}=13.6$ TeV, using a data sample collected in 2022 by the CMS experiment and corresponding to an integrated luminosity of 37.4 $\text{fb}^{-1}$. The measurement is performed in the dimuon decay channels, differentially as a function of transverse momentum in the 20$-$200 GeV range, in the $|y| < 0.6$ and $0.6 < |y| < 1.2$ rapidity intervals..
CMS-PAS-BPH-24-004.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije
2025-11-04
15:03
Search for heavy resonances decaying to a top quark-antiquark pair in dilepton + jets final states /CMS Collaboration
A search for a heavy resonance decaying into a top quark and antiquark pair is performed using proton-proton collisions at $\sqrt{s}=13\,\text{TeV}$. The search uses the dataset collected with the CMS detector during Run 2, corresponding to total integrated luminosity of 138$~\mathrm{fb^{-1}}$. [...]
CMS-PAS-B2G-23-010.- 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_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; Figure_005-c: PDF; Figure_005-d: PDF; Figure_005-e: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije