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CMS Physics Analysis Summaries

Последние добавления:
2020-06-02
20:13
Search for dark matter produced in association with a Z boson in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
A search for dark matter (DM) particles is performed using events with a Z boson candidate and large missing transverse momentum. The analysis is based on proton-proton collision data at a center-of-mass energy of $13~\mathrm{TeV}$ collected by the CMS experiment at the LHC in $2016-2018$, corresponding to an integrated luminosity of $137~\mathrm{fb}^{-1}$. [...]
CMS-PAS-EXO-19-003.- Geneva : CERN, 2020 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; 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: PDF; Figure_009: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_010-d: PDF; Figure_010-e: PDF; Figure_010-f: PDF; Figure_011: PDF; Fulltext in PDF: PDF;

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2020-06-02
09:18
New constraints of initial states in PbPb collisions with Z boson yields and azimuthal anisotropy at $\sqrt{s_{\text{NN}}} = 5.02$ TeV /CMS Collaboration
The differential yields of Z bosons decaying to a pair of leptons are measured in PbPb collisions collected by the CMS experiment at the LHC. The measurements are performed for collisions at 5.02 TeV, using both the muon and electron decay channels. [...]
CMS-PAS-HIN-19-003.- Geneva : CERN, 2020 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004: PDF; Fulltext in PDF: PDF;

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2020-06-01
18:22
Measurement of B$_s^0$ and B$^+$ meson yields in PbPb collisions at ${\sqrt{s_{\text{NN}}}} = 5.02$ TeV /CMS Collaboration
The B$^{0}_s$ and B$^{+}$ production cross sections are measured in PbPb collisions at a center-of-mass energy per nucleon pair of $5.02\,$TeV. The data sample, collected by the CMS detector at the LHC, corresponds to an integrated luminosity of $1.7\,\text{nb}^{-1}$. [...]
CMS-PAS-HIN-19-011.- Geneva : CERN, 2020 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Fulltext in PDF: PDF;

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2020-06-01
14:45
Observation of forward neutron multiplicity dependence of dimuon acoplanarity in ultra-peripheral PbPb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02~\mathrm{TeV}$ /CMS Collaboration
The first measurement of forward neutron multiplicity dependence of $\gamma\gamma \rightarrow \mu^{+}\mu^{-}$ production in ultra-peripheral PbPb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02~\mathrm{TeV}$ is reported by the CMS experiment at the LHC. The azimuthal correlations between two muons in the invariant mass region $8 < M_{\mu\mu}< 60~\mathrm{GeV}$ are extracted for events associated with zero, one or at least two neutrons produced in the very forward region. [...]
CMS-PAS-HIN-19-014.- Geneva : CERN, 2020 Figure_001: PDF; Figure_002: PDF; Fulltext in PDF: PDF;

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2020-06-01
10:38
First measurement of the forward rapidity gap distribution in $\mathrm{p}\mathrm{Pb}$ collisions at $\sqrt{s_{NN}}=8.16~\mathrm{TeV}$ /CMS Collaboration
We present, for the first time at LHC energies, the forward rapidity gap spectra from proton-lead collisions for both pomeron-lead and pomeron-proton topologies. The analysis is performed over 10.4 units of pseudorapidity at a center-of-mass energy of $\sqrt{s_{NN}}=8.16~\mathrm{TeV}$, i.e. [...]
CMS-PAS-HIN-18-019.- Geneva : CERN, 2020 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005: PDF; Figure_006: PDF; Figure_007: PDF; Figure_008: PDF; Fulltext in PDF: PDF;

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2020-05-27
18:53
Extraction and validation of a set of HERWIG 7 tunes from CMS underlying-event measurements /CMS Collaboration
This note presents a new set of parameters ("tunes") for the underlying-event model of the HERWIG$\,$7 event generator. The parameters control the description of multiple-parton interactions (MPI) and colour reconnection in HERWIG$\,$7, and are obtained from a fit to underlying-event and minimum-bias data collected by the CMS experiment at $\sqrt{s}=$ 0.9, 7, and 13 TeV. [...]
CMS-PAS-GEN-19-001.- Geneva : CERN, 2020 Figure_001: PDF; Figure_002: 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_004-d: 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: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_009-d: PDF; Figure_010: 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; Figure_012-d: PDF; Figure_012-e: PDF; Figure_012-f: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_013-c: PDF; Figure_013-d: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Figure_014-c: PDF; Figure_015-a: PDF; Figure_015-b: PDF; Figure_015-c: PDF; Figure_015-d: PDF; Figure_015-e: PDF; Figure_015-f: PDF; Figure_016-a: PDF; Figure_016-b: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Figure_017-c: PDF; Figure_018-a: PDF; Figure_018-b: PDF; Figure_018-c: PDF; Figure_018-d: PDF; Figure_019-a: PDF; Figure_019-b: PDF; Figure_019-c: PDF; Figure_019-d: PDF; Figure_020-a: PDF; Figure_020-b: PDF; Figure_020-c: PDF; Figure_020-d: PDF; Figure_021-a: PDF; Figure_021-b: PDF; Figure_021-c: PDF; Figure_021-d: PDF; Figure_022-a: PDF; Figure_022-b: PDF; Figure_022-c: PDF; Figure_022-d: PDF; Figure_022-e: PDF; Figure_022-f: PDF; Figure_023-a: PDF; Figure_023-b: PDF; Figure_023-c: PDF; Figure_023-d: PDF; Fulltext in PDF: PDF;

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2020-05-26
09:22
Search for a low-mass dilepton resonance in Higgs boson decays to four-lepton final states at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
A generic search for a low mass dilepton resonance in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via two new particles (beyond the standard model), or one new particle in association with a Z boson. [...]
CMS-PAS-HIG-19-007.- Geneva : CERN, 2020 Figure_001: PNG; 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; Figure_005-c: PDF; Figure_006: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Fulltext in PDF: PDF;

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2020-05-25
20:12
Search for decays of the $125~\mathrm{GeV}$ Higgs boson into a Z boson and a $\rho$ or $\phi$ meson /CMS Collaboration
The decays of the $125~\mathrm{GeV}$ Higgs boson into a Z boson and a $\rho^0(770)$ or $\phi(1020)$ meson are searched for using proton-proton collision data collected by the CMS experiment at the LHC from 2016 to 2018 at $\sqrt{s}=13~\mathrm{TeV}$. The analysed data set corresponds to an integrated luminosity of $137~\mathrm{fb}^{-1}$. [...]
CMS-PAS-HIG-19-012.- Geneva : CERN, 2020 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-a: PDF; Figure_005-b: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Fulltext in PDF: PDF;

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2020-05-25
18:30
Measurement of the top quark Yukawa coupling from $\mathrm{t}\bar{\mathrm{t}}$ kinematic distributions in the dilepton final state at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
An indirect measurement of the Higgs Yukawa coupling to the top quark is presented using pp collision at $\sqrt{s}=13~\mathrm{TeV}$ with an integrated luminosity of $137~\mathrm{fb}^{-1}$ recorded by the CMS detector. The coupling strength with respect to the standard model value, $Y_\mathrm{t}$, is determined from kinematic distributions in $\mathrm{t\bar{t}}$ production final states containing ee, $\mu\mu$, or e$\mu$ pairs. [...]
CMS-PAS-TOP-19-008.- Geneva : CERN, 2020 Figure_001: PNG; 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_004-d: PDF; Figure_005: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007: PDF; Figure_008: PDF; Figure_009: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_010-d: PDF; Fulltext in PDF: PDF;

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2020-05-25
17:24
Differential measurements of the Drell--Yan process in the muon channel in pPb collisions at $\sqrt{s_{_{\text{NN}}}}=8.16~\mathrm{TeV}$ /CMS Collaboration
Measurements of differential cross sections for the Drell--Yan process, including Z boson production, in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of $8.16~\textrm{TeV}$ are presented, in the muon channel. A data sample recorded with the CMS detector at the LHC is used, corresponding to an integrated luminosity of $173.4 \pm 6.1 \textrm{nb}^{-1}$. [...]
CMS-PAS-HIN-18-003.- Geneva : CERN, 2020 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_001-g: 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_002-g: 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_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_004-d: PDF; Figure_004-e: PDF; Figure_004-f: PDF; Figure_004-g: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Fulltext in PDF: PDF;

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