CERN Accelerating science

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1.
YSF Measurement of the shape of the bb quark fragmentation function using charmed mesons produced inside bb jets from t¯tt¯t decays / Yates, Brent Robert (Ohio State U.) /CMS Collaboration
A first measurement of the bb quark fragmentation function at the LHC is presented. Charmed meson candidates produced via semi-leptonic t¯tt¯t decays (tbWtbW b-jet νν) are used as a proxy for the parent BB meson. [...]
CMS-CR-2022-017.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF;
In : 14th International Workshop on Top Quark Physics 2021, Online, Online, 13 - 17 Sep 2021
2.
Top pair cross section in e/mu+jets at 8 TeV /CMS Collaboration
A measurement is presented of the top quark pair-production cross section in s=s=~8~TeV proton-proton collisions using data corresponding to an integrated luminosity of up to 2.8~fb11, collected by the CMS detector at the Large Hadron Collider. The analysis is performed in the top quark pair decay channel with one isolated, high transverse momentum electron or muon, and at least four hadronic jets. [...]
CMS-PAS-TOP-12-006.- Geneva : CERN, 2012 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PNG; Figure_002-b: PNG; Figure_003: PDF; Fulltext in PDF: PDF;
3.
Search for t' pair production in lepton+jets channel /CMS Collaboration
A search is presented for the pair production of a fourth-generation up-type tt quark in proton-proton collisions at s=7s=7~TeV using data collected by the Compact Muon Solenoid (CMS) experiment. The tt quark is assumed to decay exclusively to a WW boson and a bb quark. The search is carried out using events with a single isolated electron or muon, large missing transverse momentum, and at least four jets with large transverse momenta, one of which is identified as originating from the fragmentation of a bb quark. [...]
CMS-PAS-EXO-11-099.- Geneva : CERN, 2012 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003: PDF; Figure_004: 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; Fulltext in PDF: PDF;
4.
Search for dark matter in association with a t¯tt¯t pair at s=13 TeVs=13 TeV in the dilepton channel with 2016 data /CMS Collaboration
A search is performed for dark matter produced in association with t¯tt¯t pairs in data from proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC. The data corresponds to 35.9 fb135.9 fb1 collected with the CMS detector in 2016. [...]
CMS-PAS-EXO-17-014.- Geneva : CERN, 2018 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_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-a: PDF; Figure_009-b: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_010-d: 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_013-c: PDF; Figure_013-d: PDF; Figure_013-e: PDF; Figure_013-f: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Fulltext in PDF: PDF;
5.
Measurement of the inclusive t¯tt¯t cross section at s=5.02 TeVs=5.02 TeV /CMS Collaboration
The top quark pair production cross section is measured is measured in pp collisions at a center-of-mass energy s=5.02 TeVs=5.02 TeV. The analyzed data have been collected by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 27.4 pb127.4 pb1. [...]
CMS-PAS-TOP-16-023.- Geneva : CERN, 2017 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-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: PDF; Figure_008: PDF; Fulltext in PDF: PDF;
6.
Precision lifetime measurements of bb hadrons reconstructed in final states with a J/ψJ/ψ meson /CMS Collaboration
We present measurements of the lifetimes of the B0B0, B0sB0s, Λ0bΛ0b, and B+cB+c hadrons using the decay channels B0J/ψK(892)0B0J/ψK(892)0, B0J/ψKSB0J/ψKS, B0sJ/ψπ+πB0sJ/ψπ+π, B0sJ/ψϕ(1020)B0sJ/ψϕ(1020), Λ0bJ/ψΛ, and B+cJ/ψπ+. The data sample, corresponding to 19.7 fb1, was collected from proton-proton collisions at s=8 TeV using dedicated triggers to select oppositely charged muons in the J/ψ mass region. [...]
CMS-PAS-BPH-13-008.- Geneva : CERN, 2017 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_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; Figure_010: PDF; Fulltext in PDF: PDF;
7.
Measurement of the t¯tH and tH production rates in the Hb¯b decay channel with 138fb1 of proton-proton collision data at s=13TeV /CMS Collaboration
An analysis of the production of a Higgs boson (H) in association with a top quark-antiquark pair (t¯tH) or a single top quark (tH) in the channel where the Higgs boson decays into a bottom quark-antiquark pair (Hb¯b) is presented. The analysis utilises proton-proton collision data collected at the CERN LHC with the CMS experiment at s=13TeV between 2016 and 2018, which correspond to an integrated luminosity of 138fb1 [...]
CMS-PAS-HIG-19-011.- Geneva : CERN, 2023 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-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; Figure_004-d: PDF; Figure_004-e: PDF; Figure_004-f: 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_006-e: PDF; Figure_006-f: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_008: PDF; Figure_009: PDF; Figure_010: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_011-c: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_013: PDF; Figure_014: PDF; Figure_015-a: PDF; Figure_015-b: PDF; Figure_016: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)
8.
Measurement of the top-quark mass from the b jet energy spectrum /CMS Collaboration
The top-quark mass is measured using the peak position of the energy distribution of b jets produced from top-quark decays. The analysis is based on a recent theoretical proposal. [...]
CMS-PAS-TOP-15-002.- Geneva : CERN, 2015 Figure_001: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_004: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006: PDF; Fulltext in PDF: PDF;
9.
Search for t¯tH production in the Hb¯b decay channel with s=13 TeV pp collisions at the CMS experiment /CMS Collaboration
First results of the search for the associated production of a Higgs boson with a top quark-antiquark pair (t¯tH) in proton-proton collisions at a center-of-mass energy of s=13 TeV are presented. The data correspond to an integrated luminosity of 2.7 fb1 recorded with the CMS experiment in 2015. [...]
CMS-PAS-HIG-16-004.- Geneva : CERN, 2016 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_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-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_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_007-d: PDF; Figure_007-e: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_009: PDF; Figure_010: PDF; Fulltext in PDF: PDF;
10.
Measurement of t¯tH production in the Hb¯b decay channel in 41.5fb1 of proton-proton collision data at s=13TeV /CMS Collaboration
A measurement of the associated production of a standard model Higgs boson with a top quark-antiquark pair (t¯tH) in proton-proton collisions at s=13TeV is presented. The result is based on data recorded with the CMS detector at the CERN LHC in 2017 and corresponds to an integrated luminosity of 41.5fb1 [...]
CMS-PAS-HIG-18-030.- Geneva : CERN, 2019 Figure_001: 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_004-d: 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: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008: PDF; Fulltext in PDF: PDF;

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