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CMS Physics Analysis Summaries

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2025-05-14
23:05
Search for Higgsinos in final states with low-momentum lepton-track pairs at 13 TeV /CMS Collaboration
A search for the pair production of Higgsinos in final states with large missing transverse momentum and either two reconstructed muons or a reconstructed lepton (muon or electron) and an isolated track is presented. The analyzed data are proton-proton collisions with an integrated luminosity of 138 fb$^{-1}$ collected by the CMS experiment in proton-proton collisions at $\sqrt{s} = 13~\mathrm{TeV}$. [...]
CMS-PAS-SUS-24-003.- 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-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: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-05-14
23:05
Exploring the origin of D0 meson elliptic flow in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV using event shape engineering /CMS Collaboration
The effect of the initial collision geometry on the elliptic flow ($v_2$) in events with prompt $\mathrm{D^0}$ mesons produced in $\text{PbPb}$ collisions at $\sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}=5.02\,\text{TeV}$ is studied using data from the CMS experiment. Using an event-shape engineering technique, initial-state eccentricities within a given centrality range are systematically varied. [...]
CMS-PAS-HIN-24-015.- Geneva : CERN, 2025 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: 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-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; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-05-12
14:20
Search for a Higgs boson produced in association with a charm quark, decaying to two W bosons in the e$\nu\mu\nu$ final state /CMS Collaboration
This note presents a search for a Higgs boson produced in association with a charm quark (cH) which allows to probe the Higgs-charm Yukawa coupling $\kappa_{\text{c}}$. Higgs boson decays into a pair of W bosons are considered, where one W boson decays to an electron and a neutrino, while the other W boson decays to a muon and a neutrino. [...]
CMS-PAS-HIG-24-009.- Geneva : CERN, 2025 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_005-c: PDF; Figure_005-d: PDF; Figure_006: PDF; Figure_007: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-05-08
09:34
DeepMET: Improving missing transverse momentum estimation with a deep neural network /CMS Collaboration
At hadron colliders, the net transverse momentum of particles that do not interact with the detector (missing transverse momentum) is a crucial observable in many analyses. In the standard model, missing transverse momentum originates from neutrinos. [...]
CMS-PAS-JME-24-001.- 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-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_008-a: PDF; Figure_008-b: 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_010-a: PDF; Figure_010-b: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_011-c: PDF; Figure_011-d: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_012-c: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-05-06
22:09
First measurement of coherent photoproduction of Y(1S) mesons in lead-lead ultraperipheral collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV /CMS Collaboration
Coherent photoproduction of heavy-flavor vector mesons in ultrarelativistic heavy ion collisions (UPCs) provides a direct probe of the gluonic structure of nuclei. This note presents the first measurement of coherent photoproduction of $\Upsilon(1S)$ off heavy nuclei. [...]
CMS-PAS-HIN-24-013.- 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; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-05-05
05:24
Search for a low mass resonance decaying to $\tau\tau$ using data collected with a dedicated high-rate data stream /CMS Collaboration
An inclusive search for a low-mass resonance decaying to two $\tau$ leptons is presented, probing the mass range from 20 to $60~\mathrm{GeV}$ for the first time at a hadron collider. The search uses proton-proton collision data at $\sqrt{s}=13.6~\mathrm{TeV}$ corresponding to an integrated luminosity of 61.9 $\mathrm{fb}^{-1}$ collected by the CMS experiment in 2022 and 2023. [...]
CMS-PAS-EXO-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_003: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-05-02
17:37
Identification of tau leptons using a convolutional neural network with domain adaptation in the CMS experiment /CMS Collaboration
The DeepTau identification algorithm, based on deep neural network techniques, has been developed to reduce the fraction of jets, muons, and electrons misidentified as hadronically decaying tau leptons ($\tau_\mathrm{h}$) in the CMS experiment. The latest version of this algorithm includes domain adaptation by backpropagation, a technique that reduces data-to-simulation discrepancies in the region with the highest purity of genuine $\tau_\mathrm{h}$ candidates. [...]
CMS-PAS-TAU-24-001.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002: PNG; Figure_003: 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-a: PDF; Figure_007-b: PDF; Figure_008-a: PDF; Figure_008-b: 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-a: PDF; Figure_015-b: PDF; Figure_016-a: PDF; Figure_016-b: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Figure_017-c: PDF; Figure_017-d: PDF; Figure_018-a: PDF; Figure_018-b: PDF; Figure_018-c: PDF; Figure_018-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-05-01
12:48
Probing thermodynamic properties of proton-lead collision systems via multiplicity dependence of average transverse momentum at the LHC /CMS Collaboration
The possible formation of hot, strongly interacting matter in small collision systems has generated significant interest. In this study, the correlation between the average transverse momentum ($\langle {p_{\mathrm{T}}} \rangle$) and charged-particle multiplicity ($N_{\mathrm{ch}}$) is analyzed in proton-lead (pPb) collisions at the CERN LHC to explore the system's thermodynamic properties. [...]
CMS-PAS-HIN-25-001.- Geneva : CERN, 2025 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-04-30
18:12
Search for dark matter produced in association with a Higgs boson decaying to bottom quarks in proton-proton collisions at 13 TeV /CMS Collaboration
A search for dark matter produced in association with a Higgs boson decaying to a pair of bottom quarks is presented using data collected with the CMS detector in 2017 and 2018 at $\sqrt{s}$=13 TeV, corresponding to an integrated luminosity of 101.3 fb$^{-1}$. The analysis is performed in exclusive channels targeting both boosted and resolved b quark pair topologies, covering a wide range of Higgs boson transverse momentum. [...]
CMS-PAS-SUS-24-007.- Geneva : CERN, 2025 Figure_001: PNG; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PNG; Figure_003-b: PNG; Figure_003-c: PNG; Figure_003-d: PNG; Figure_004: PNG; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy
2025-04-28
16:08
Search for new physics with compressed mass spectra in final states with soft leptons and missing transverse energy in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
A search for supersymmetric scenarios leading to compressed mass spectra is presented, using events with at least two low-$p_{\mathrm{T}}$ electrons or muons and missing transverse energy, in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$. This analysis is based on data collected with the CMS detector at the CERN LHC and corresponds to a total integrated luminosity of up to $139~\mathrm{fb}^{-1}$. [...]
CMS-PAS-EXO-23-017.- 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_005-a: PDF; Figure_005-b: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_007: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Rekord szczegółowy