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CMS Physics Analysis Summaries

Letzte Einträge:
2020-03-12
16:14
Measurement of differential cross sections for single top quark production in association with a W boson at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
Measurements are presented of normalized differential cross sections for the production of single top quarks in association with a W boson, in proton-proton collisions at a centre-of-mass energy of $13~\mathrm{TeV}$. Events containing one muon and one electron in the final state are analyzed. [...]
CMS-PAS-TOP-19-003.- Geneva : CERN, 2020 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: 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_004-e: PDF; Figure_004-f: 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_006-c: PDF; Figure_006-d: PDF; Figure_006-e: PDF; Figure_006-f: PDF; Fulltext in PDF: PDF;

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2020-02-04
10:47
Measurement of the W boson rapidity, helicity, and differential cross sections in pp collisions at $\sqrt{s}=13~\mathrm{TeV}$ /CMS Collaboration
The differential cross section and charge asymmetry for inclusive W boson production at $\sqrt{s}=13~\mathrm{TeV}$ is measured for the two transverse polarization states as a function of the W boson absolute rapidity. The measurement uses events in which a W boson decays to either an electron or a muon and a neutrino [...]
CMS-PAS-SMP-18-012.- 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_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_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-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_012-c: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Figure_014-c: PDF; Figure_015: PDF; Figure_016-a: PDF; Figure_016-b: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Figure_018-a: PDF; Figure_018-b: PDF; Figure_019-a: PDF; Figure_019-b: PDF; Figure_020: PDF; Figure_021-a: PDF; Figure_021-b: PDF; Figure_022-a: PDF; Figure_022-b: PDF; Figure_022-c: PDF; Figure_023-a: PDF; Figure_023-b: PDF; Figure_024-a: PDF; Figure_024-b: PDF; Figure_025: PDF; Figure_026-a: PDF; Figure_026-b: PDF; Figure_026-c: PDF; Figure_027-a: PDF; Figure_027-b: PDF; Figure_028-a: PDF; Figure_028-b: PDF; Figure_029-a: PDF; Figure_029-b: PDF; Figure_030-a: PDF; Figure_030-b: PDF; Figure_031-a: PDF; Figure_031-b: PDF; Figure_032-a: PDF; Figure_032-b: PDF; Figure_032-c: PDF; Figure_033: PDF; Figure_034-a: PDF; Figure_034-b: PDF; Figure_035-a: PDF; Figure_035-b: PDF; Figure_035-c: PDF; Figure_036-a: PDF; Figure_036-b: PDF; Fulltext in PDF: PDF;

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2020-02-02
15:45
Search for disappearing tracks in proton-proton collisions at $\sqrt{s} = 13$ TeV /CMS Collaboration
A search is presented for long-lived charged particles that decay within the silicon tracker of the CMS detector. Such particles can produce a "disappearing track" signature, identified as an isolated track with no associated hits in the muon detectors, little calorimeter energy deposits, and missing hits in the outermost layers of the silicon tracker. [...]
CMS-PAS-EXO-19-010.- 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; Fulltext in PDF: PDF;

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2020-01-10
10:58
Combined Higgs boson production and decay measurements with up to 137 fb-1 of proton-proton collision data at sqrts = 13 TeV /CMS Collaboration
Combined measurements of the production and decay rates of the Higgs boson, its couplings to vector bosons and fermions, and interpretations in the effective field theory framework are presented. The analysis uses the LHC proton-proton collision data set recorded with the CMS detector at $\sqrt{s}=13\,\mathrm{TeV}$ in 2016, 2017, and 2018, corresponding to an integrated luminosity of up to $137\,\mathrm{fb}^{-1}$, depending on the decay channel. [...]
CMS-PAS-HIG-19-005.- 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_003-c: 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: PDF; Figure_007: PDF; Figure_008: PDF; Figure_009-a: PDF; Figure_009-b: 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_013: PDF; Fulltext in PDF: PDF;

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2019-11-29
12:47
Search for a light charged Higgs boson in the H$^{\pm} \rightarrow$ cs channel at 13 TeV /CMS Collaboration
A search is conducted for a low-mass charged Higgs boson produced in a top quark decay and subsequently decaying into a charm and an antistrange quark. The data sample was recorded in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ by the CMS experiment at the LHC and corresponds to an integrated luminosity of $35.9~\mathrm{fb}^{-1}$. [...]
CMS-PAS-HIG-18-021.- Geneva : CERN, 2019 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_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Fulltext in PDF: PDF;

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2019-11-19
09:42
Measurement of prompt $\rm{ D_{s}^{+}}$ production in pp and PbPb collisions at $\sqrt{s_{_{\text{NN}}}}$ = 5.02 TeV /CMS Collaboration
The transverse momentum ($p_{T}$) spectra of prompt $\rm{ D_{s}^{+}}$ mesons and charge conjugates are measured in pp and PbPb collisions at a center-of-mass energy of 5.02 TeV per nucleon pair using the CMS detector at the LHC. The measurement is performed through the ${\rm D_{s}^{+}}$ $\to$ $\phi$$\pi^{+}$ $\to$ $\rm{K^{+}K^{-}}$$\pi^{+}$ decay channels with the $\rm{ D_{s}^{+}}$ rapidity range $|y| < 1.0 $. [...]
CMS-PAS-HIN-18-017.- Geneva : CERN, 2019 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: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Fulltext in PDF: PDF;

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2019-11-13
15:22
Extraction of CKM matrix elements in single top quark $t$-channel events in proton-proton collisions at $\sqrt{s} = 13$ TeV /CMS Collaboration
This note presents a model-independent extraction of the modulus of the Cabibbo Kobayashi Maskawa matrix elements $\mathrm{V_{\mathrm{tb}}}$, $\mathrm{V_{\mathrm{td}}}$, and $\mathrm{V_{\mathrm{ts}}}$ using an event sample enriched in single top quark $t$-channel events. The analysis uses proton-proton collisions data from the LHC collected during 2016 by the CMS experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb$^{\mathrm{-1}}$. [...]
CMS-PAS-TOP-17-012.- Geneva : CERN, 2019 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; 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_005-c: PDF; Figure_005-d: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_006-d: PDF; Figure_006-e: PDF; Figure_006-f: PDF; Fulltext in PDF: PDF;

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2019-11-08
11:06
Nuclear modification factor of isolated photons in PbPb collisions at $\sqrt{s_{_{\mathrm{NN}}}} = 5.02~\mathrm{TeV}$ /CMS Collaboration
The transverse energy ($E^{\gamma}_\text{T}$) spectra and the nuclear modification factors ($R_{\mathrm{AA}}$) of isolated photons are analyzed using proton-proton (pp) and lead-lead (PbPb) collisions at $\sqrt{s_{_{\mathrm{NN}}}} = 5.02~\mathrm{TeV}$. The data were collected using the CMS detector at the CERN LHC with corresponding integrated luminosities of $404~\mu\mathrm{b}^{-1}$ and $27.4~\mathrm{pb}^{-1}$ for PbPb and pp data, respectively. [...]
CMS-PAS-HIN-18-016.- Geneva : CERN, 2019 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005: PDF; Figure_006: PDF; Fulltext in PDF: PDF;

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2019-11-07
22:48
Nuclear modification of $\Upsilon$ states in pPb collisions at $\sqrt{s_\mathrm{NN}} = 5.02~\mathrm{TeV}$ /CMS Collaboration
Production cross sections of $\Upsilon(\mathrm{1S})$, $\Upsilon(\mathrm{2S})$, and $\Upsilon(\mathrm{3S})$ states decaying into $\mu^{+}\mu^{-}$ in proton-lead (pPb) collisions are reported using data collected by the CMS experiment at $\sqrt{s_\mathrm{NN}}=5.02~\mathrm{TeV}$. Nuclear modification factors $R_\mathrm{pPb}$ for all three $\Upsilon$ states are obtained using measured proton-proton (pp) cross sections at the same collision energy. [...]
CMS-PAS-HIN-18-005.- Geneva : CERN, 2019 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_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Fulltext in PDF: PDF;

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2019-11-07
10:55
Search for strong electromagnetic fields in PbPb collisions at 5.02 TeV via azimuthal anisotropy of $\mathrm{D^0}$ and $\mathrm{\overline{D}^0}$ mesons /CMS Collaboration
Motivated by the search for strong electromagnetic fields created in PbPb collisions, the first measurement of the $v_2$ difference ($\Delta v_2$) between $\mathrm{D^0}$ and $\mathrm{\overline{D}^0}$ is presented as a function of rapidity. The result for the rapidity-averaged $v_2$ difference is found to be $\left\langle\Delta v_2 \right\rangle = 0.001 \pm 0.001 \mathrm{(stat)} \pm 0.003 \mathrm{(syst)}$, consistent with zero within experimental uncertainties. [...]
CMS-PAS-HIN-19-008.- Geneva : CERN, 2019 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005: PDF; Fulltext in PDF: PDF;

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