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# CMS Conference Reports

Letzte Einträge:
2018-01-22
10:26
 Measurement of single top quark production with CMS / Andrea, Jeremy (Strasbourg, IPHC) /CMS Collaboration Several measurements of single top quark production in proton-proton collisions at the LHC at centre-of-mass energies of 7, 8 and 13 TeV, using data collected with the CMS experiment, are presented. The analyses investigate separately the productions of top via t-channel exchange, in association with a W boson (tW) or via the s-channel. [...] CMS-CR-2018-011.- Geneva : CERN, 2018 - 7 p. Fulltext: PDF; In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017

2018-01-22
10:26
 Performance of the CMS precision electromagnetic calorimeter at LHC Run II and prospects for High-Luminosity LHC / Zhang, Zhicai (Caltech) /CMS Collaboration Many physics analyses using the Compact Muon Solenoid (CMS) detector at the LHC require accurate, high-resolution electron and photon energy measurements. Following the excellent performance achieved during LHC Run I at center-of-mass energies of 7 and 8 TeV, the CMS electromagnetic calorimeter (ECAL) is operating at the LHC with proton-proton collisions at 13 TeV center-of-mass energy. [...] CMS-CR-2017-447.- Geneva : CERN, 2017 - 8 p. Fulltext: PDF; In : Calorimetry for High Energy Frontier, Lyon, France, 2 - 6 Oct 2017

2018-01-19
08:23
 Scintillator performance at low dose rates and low temperatures for the CMS High Granularity Calorimeter for HL-LHC / Ricci-Tam, Francesca (Maryland U.) /CMS Collaboration The High Luminosity LHC (HL-LHC) will integrate 10 times more luminosity than the LHC, posing significant challenges for radiation tolerance, especially for forward calorimetry, and highlights the issue for future colliders. As part of its HL-LHC upgrade program, the CMS collaboration is designing a High Granularity Calorimeter to replace the existing endcap calorimeters. [...] CMS-CR-2018-009.- Geneva : CERN, 2018 - 10 p. Fulltext: PDF; In : Calorimetry for High Energy Frontier, Lyon, France, 2 - 6 Oct 2017

2018-01-19
08:23
 Measurement of the top quark mass with lepton+jets final states in pp collisions at $\sqrt s$ = 13~TeV / Kovalchuk, Nataliia (Hamburg U.) /CMS Collaboration The mass of the top quark is measured using a sample of ttbar candidate events with one muon or electron and at least four jets in the final state, collected by CMS in pp collisions at 13 TeV at the LHC. The candidate events are selected from data collected during 2016 running period and correspond to an integrated luminosity of 35.9 fb$^{-1}$. [...] CMS-CR-2018-008.- Geneva : CERN, 2018 - 9 p. Fulltext: PDF; In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

2018-01-16
11:03
 Searches for vector-like quarks and resonances decaying to top quarks with the ATLAS and CMS detectors / Van Onsem, Gerrit Patrick (DESY) /ATLAS and CMS Collaborations Many models beyond the standard model predict the existence of vector-like quarks or other types of heavy resonances. Using proton-proton collision data at center-of-mass energies of 8 and 13 TeV, the ATLAS and CMS Collaborations have performed a multitude of searches for pair and singly produced vector-like quarks decaying to W, Z, or Higgs bosons. [...] CMS-CR-2017-384.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF; In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

2018-01-16
11:02
 Measurement of normalized differential $t\bar{t}$ cross sections in the dilepton channel from pp collisions at 13 TeV / Roh, Youn (Korea U.) /CMS Collaboration Measurements of normalized differential cross sections for top quark pair production are performed in the dilepton decay channels in proton-proton collisions at a center-of-mass energy of 13~TeV. The differential cross sections are measured with data corresponding to an integrated luminosity of 2.1~fb$^{-1}$ recorded by the CMS experiment at the LHC. [...] CMS-CR-2017-435.- Geneva : CERN, 2017 - 6 p. Fulltext: PDF; In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

2018-01-16
11:02
 Measurements of differential $t\bar t$ cross sections at CMS / Hindrichs, Otto Heinz (Rochester U.) /CMS Collaboration An overview of recent measurements of differential top quark pair production cross sections performed by the CMS experiment at the LHC is presented. Measurements at different proton-proton center-of-mass energies are available using the dilepton, lepton+jets, and all-jets decay channels of the top quark. [...] CMS-CR-2017-439.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF; In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

2018-01-11
14:38
 Review of the latest measurements of the inclusive $\mathrm{t\bar t}$ production cross section in CMS / Gonzalez Fernandez, Juan Rodrigo (Oviedo U.) /CMS Collaboration The measurement of the $\mathrm{t\bar t}$ inclusive production cross section $\sigma_{t\bar t }$ is crucial to probe QCD predictions, constrain new physic scenarios, proton PDFs, top quark pole mass, $\alpha_S$ and many other parameters from the SM. The CMS Collaboration has measured this quantity in different final states and at different centre-of-mass energies, probing QCD calculations and deriving several constraints. [...] CMS-CR-2018-007.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF; In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

2018-01-11
14:38
 Measurement of the $\mathrm{t\bar t}$ inclusive production cross section at 5.02 TeV / Gonzalez Fernandez, Juan Rodrigo (Oviedo U.) /CMS Collaboration The top quark pair production $\sigma_{t\bar t}$ is measured in pp collisions at a center-of-mass energy of 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 /pb. [...] CMS-CR-2018-005.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF; In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

2018-01-11
14:34
 Electronics and triggering challenges for the CMS High Granularity Calorimeter / Lobanov, Artur (Ecole Polytechnique) /CMS Collaboration The High Granularity Calorimeter (HGCAL), presently being designed by the CMS collaboration to replace the CMS endcap calorimeters for the High Luminosity phase of LHC, will feature six million channels distributed over 52 longitudinal layers. The requirements for the front-end electronics are extremely challenging, including high dynamic range (0-10 pC), low noise (~2000e- to be able to calibrate on single minimum ionising particles throughout the detector lifetime) and low power consumption (~10mW/channel), as well as the need to select and transmit trigger information with a high granularity. [...] CMS-CR-2017-452.- Geneva : CERN, 2017 - 9 p. Fulltext: PDF; In : Calorimetry for High Energy Frontier, Lyon, France, 2 - 6 Oct 2017