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CMS Physics Analysis Summaries

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2020-07-13
18:36
Measurement of angular and momentum distributions in multijet and Z+2 jet final states in pp collisions at $\sqrt{s}=8$ and $13~\mathrm{TeV}$ /CMS Collaboration
We investigate collinear and wide-angle as well as soft and hard radiation in multijet and Z+2 jet events collected in pp collisions at the LHC. We measure the transverse momentum ratio of the two jets and the angular separation between them. [...]
CMS-PAS-SMP-17-008.- Geneva : CERN, 2020 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_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; Fulltext in PDF: PDF;

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2020-06-11
16:15
Measurement of prompt open-charm production cross sections in proton-proton collisions at $\sqrt{s}$ = 13 TeV /CMS Collaboration
The production cross section for prompt open-charm mesons is measured in proton-proton collisions at the LHC center-of-mass energy of 13 TeV. The data sample corresponds to an integrated luminosity of 29 nb$^{-1}$ collected by the CMS experiment in 2016. [...]
CMS-PAS-BPH-18-003.- Geneva : CERN, 2020 Figure_001-a: PNG; Figure_001-b: PNG; Figure_001-c: PNG; Figure_001-d: PNG; Figure_001-e: PNG; Figure_001-f: PNG; Figure_002-a: PNG; Figure_002-b: PNG; Figure_002-c: PNG; Figure_002-d: PNG; Figure_002-e: PNG; Figure_002-f: PNG; Figure_003-a: PNG; Figure_003-b: PNG; Figure_004-a: PNG; Figure_004-b: PNG; Figure_005-a: PNG; Figure_005-b: PNG; Figure_006-a: PNG; Figure_006-b: PNG; Figure_007-a: PNG; Figure_007-b: PNG; Figure_008-a: PNG; Figure_008-b: PNG; Figure_008-c: PNG; Figure_009: PNG; Figure_010-a: PNG; Figure_010-b: PNG; Figure_010-c: PNG; Fulltext in PDF: PDF;

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2020-06-04
17:26
Fragmentation of jets containing a ${\mathrm{J}/\psi}$ meson in PbPb and pp collisions at 5 TeV /CMS Collaboration
Jets containing a ${\mathrm{J}/\psi}$ meson are studied in PbPb collisions at a center of mass energy of ${\sqrt{s_{_{\text{NN}}}}} = 5.02~\mathrm{TeV}$, using the CMS detector at the LHC. Jets are selected to be in the transverse momentum range of $30 < {p_{\mathrm{T}}} < 40~\mathrm{GeV}$. [...]
CMS-PAS-HIN-19-007.- 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; Figure_004: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006: PDF; Fulltext in PDF: PDF;

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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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