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CERN Accelerating science

CMS Physics Analysis Summaries

Najnovije dodano:
2024-06-13
19:11
Search for diresonant new physics in a final state comprising a gluon and two hadronically decaying W bosons in proton-proton collisions at $\sqrt{s}$ = 13 TeV /CMS Collaboration
A search for Kaluza-Klein (KK) gluon resonances, $\mathrm{g_{KK}}$, decaying in cascade into two $\mathrm{W}$ bosons and a gluon via a scalar radion $\mathrm{R}$, $\mathrm{g_{KK} \rightarrow gR \rightarrow gWW}$, is presented. The final state with three large-radius jets, two of which contain the products of hadronically decaying $\mathrm{W}$ bosons is considered. [...]
CMS-PAS-B2G-23-004.- Geneva : CERN, 2024 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_002-d: PDF; Figure_002-e: PDF; Figure_002-f: 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_004-c: PDF; Figure_004-d: PDF; Figure_004-e: PDF; Figure_005: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-12
22:21
Measurements of polarization, spin correlations, and entanglement in top quark pairs using lepton+jets events from pp collisions at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
Measurements of the polarization and spin correlations in top quark pairs ($\mathrm{t\bar t}$) are presented using events with a single electron or muon and jets in the final state. The measurements are based on proton-proton collision data from the LHC at $\sqrt{s}=13~\mathrm{TeV}$ collected by the CMS experiment, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. [...]
CMS-PAS-TOP-23-007.- Geneva : CERN, 2024 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-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_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-a: PDF; Figure_014-b: PDF; Figure_014-c: PDF; Figure_014-d: 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_016-d: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Figure_017-c: PDF; Figure_018: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-12
00:12
Elliptic anisotropy at high $p_{\mathrm{T}}$ in pPb collisions using subevent cumulants /CMS Collaboration
The second-order (elliptic) Fourier coefficients ($v_{2}$) as a function of particle transverse momentum ($p_\mathrm{T}$) and event multiplicity are presented for pPb collisions using a subevent multiparticle cumulant analysis where nonflow effects are strongly suppressed. The data were recorded by the CMS experiment at a nucleon-nucleon center-of-mass energy of $\sqrt{s_{_{\mathrm{NN}}}} = 8.16$ TeV. [...]
CMS-PAS-HIN-23-002.- Geneva : CERN, 2024 Figure_001: PNG; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-10
11:38
Observation of the multiplicity dependence of $\sigma_{\psi(2S)}/\sigma_{J/\psi}$ in pPb collisions at 8.16 TeV /CMS Collaboration
The ratio of $\psi(2S)$ and $J/\psi$ meson production cross sections is measured as a function of the charged-particle multiplicity in pPb collisions at center-of-mass energy per nucleon pair of $\sqrt{s_{NN}} = 8.16~\mathrm{TeV}$ using the CMS detector. The data corresponds to an integrated luminosity of $175~\mathrm{nb}^{-1}$. [...]
CMS-PAS-HIN-24-001.- Geneva : CERN, 2024 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-a: PDF; Figure_004-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-05
21:32
Search for top squarks in final states with many light flavor jets and 0, 1, or 2 leptons in proton-proton collisions at sqrt(s) = 13 TeV /CMS Collaboration
Several new physics models including versions of supersymmetry (SUSY) characterized by $R$-parity violation (RPV) or with additional hidden sectors predict the production of events with top quarks, low missing transverse momentum, and many additional quarks or gluons. The results of a search for top squarks decaying to two top quarks and six additional light-flavor quarks or gluons are reported. [...]
CMS-PAS-SUS-23-001.- Geneva : CERN, 2024 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: 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_005-e: PDF; Figure_005-f: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-05
00:08
Search for excited tau leptons in the $\tau\tau\gamma$ final state in pp collisions at $\sqrt{s}=13\,\mathrm{TeV}$ /CMS Collaboration
We report the results of a test of the compositeness of the heaviest charged lepton, $\tau$, using data collected in proton-proton collisions at a center of mass energy of 13 TeV at the Large Hadron Collider at CERN in 2016-2018, corresponding to an integrated luminosity of $138\,\mathrm{fb}^{-1}$. We seek tau lepton pair production in which one tau lepton is produced in an excited state and decays to a ground state tau lepton and photon. The analysis selects events with two isolated tau lepton decay candidates plus a high energy photon. The mass of the excited tau lepton is reconstructed using the missing transverse momentum in the event, assuming the momentum of the neutrinos from each tau lepton decay lie along the visible tau lepton decay product direction. We observe no excess of events above the standard model background prediction and use this null result to set lower bounds on the excited tau lepton mass. For a compositeness scale $\Lambda$ equal to the excited tau lepton mass (10 TeV), we exclude excited tau leptons with masses below 4700 GeV (2800 GeV)..
CMS-PAS-EXO-22-007.- Geneva : CERN, 2024 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: PDF; Figure_005: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-04
15:24
Search for a neutral gauge boson with non-universal fermion couplings in vector boson fusion processes in proton-proton collisions at $\sqrt{s}=$ 13$~\mathrm{TeV}$ /CMS Collaboration
The first search for a heavy neutral spin-1 gauge boson ($\mathrm{Z'}$) produced via vector boson fusion processes is presented. The analysis considers scenarios in which the $\mathrm{Z'}$ boson has non-universal fermion couplings, favoring higher-generation fermions. [...]
CMS-PAS-EXO-21-015.- Geneva : CERN, 2024 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; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-03
22:51
Measurement of event shapes in minimum bias events from $\mathrm{p}\mathrm{p}$ collisions at $13~\mathrm{TeV}$ /CMS Collaboration
This note presents a measurement of event-shape variables using a data sample of low-pileup inelastic proton-proton collisions collected by the CMS detector at a centre-of-mass energy of $13~\mathrm{TeV}$, corresponding to an integrated luminosity of $64~\mu\text{b}^{-1}$. A number of observables related to the overall distribution of charged particles in the collisions is corrected for detector effects and compared to simulations. [...]
CMS-PAS-SMP-23-008.- Geneva : CERN, 2024 Figure_001-a: PDF; Figure_001-b: 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_A001-a: PDF; Figure_A001-b: PDF; Figure_A002-a: PDF; Figure_A002-b: PDF; Figure_A003: PDF; Figure_A004-a: PDF; Figure_A004-b: PDF; Figure_A004-c: PDF; Figure_A004-d: PDF; Figure_A005-a: PDF; Figure_A005-b: PDF; Figure_A005-c: PDF; Figure_A005-d: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-03
22:02
Angular analysis of the $B^0 \to K^{*0}(892) \mu^+ \mu^-$ decay at $\sqrt{s}$ = 13 TeV /CMS Collaboration
The full set of optimised CP-averaged observables is measured in the angular analysis of the decay ${\mathrm{B}^0} \to \mathrm{K^{\ast 0}(892)} \mu^+\mu^-$ using a sample of proton-proton collisions at $\sqrt{s}=13$ TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of ${140}~\mathrm{fb^{-1}}$. The analysis is performed in bins of the invariant mass squared of the dimuon system. [...]
CMS-PAS-BPH-21-002.- Geneva : CERN, 2024 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_003-c: PDF; Figure_003-d: PDF; Figure_003-e: PDF; Figure_003-f: PDF; Figure_003-g: PDF; Figure_003-h: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi
2024-06-03
20:45
Search for heavy neutral resonances decaying to $\tau$ lepton pairs in $\mathrm{pp}$ collisions at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
A search for heavy neutral gauge bosons ($\mathrm{Z}'$) decaying to two tau leptons is performed in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ at the CERN LHC. The data were collected with the CMS detector and correspond to an integrated luminosity of $138~\mathrm{fb}^{-1}$. [...]
CMS-PAS-EXO-21-016.- Geneva : CERN, 2024 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_001-e: PDF; Figure_001-f: 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: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)

Detaljnije - Slični zapisi