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CMS Conference Reports

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2014-10-24
16:47
Measurements of Higgs boson production and properties in the WW decay channel with both W's decaying into electrons or muons plus neutrino using the CMS detector / Govoni, Pietro (INFN, Milan Bicocca ; Milan Bicocca U.) /CMS Collaboration
A search for the Higgs boson has been carried out in the Higgs to WW decay mode with the CMS detector at the LHC collider, where each W decays into an electron or photon and a neutrino. The analysis is based on pp collision data collected at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 5/fb and 20/fb, respectively. [...]
CMS-CR-2014-338.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

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2014-10-24
16:47
Measurements of the hadronic activity and the electroweak production in events with a Z boson and two jets in proton-proton collisions with the CMS experiment / Azzurri, Paolo (INFN, Pisa) /CMS Collaboration
The observation of the electroweak production of a Z boson with two jets in pp collisions at $\sqrt{s} = 8$~TeV with the CMS experiment at the CERN LHC is presented, based on a data sample with an integrated luminosity of 19.7~fb$^{-1}$. The cross section measurement, combining the muon and electron channels, is in agreement with the theoretical expectations. Radiation patterns of selected Z plus two jets events, and the hadronic activity in the rapidity interval between the jets are also measured. These results are of substantial importance in the more general study of vector boson fusion processes, of relevance for Higgs boson searches and for measurements of electroweak gauge couplings and vector boson scattering..
CMS-CR-2014-337.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

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2014-10-24
16:47
Exotica Searches / Teyssier, Daniel Francois (Aachen, Tech. Hochsch.) /CMS Collaboration
The searches for non-SUSY physics beyond Standard Model are presented, usingthe 7 TeV and 8 TeV data at LHC. The CMS collaboration hasinvestigated numerous scenarios, including the possibility of new heavy gaugebosons, extra-dimensions, compositeness or dark matter production. [...]
CMS-CR-2014-331.- Geneva : CERN, 2014 - 6 p. Fulltext: PDF;
In : 30th International Workshop on High Energy Physics "Particle and Astroparticle Physics, Gravitation and Cosmology: Predictions, Observations and New Projects", IHEP, Protvino, Russia, 23 - 27 Jun 2014

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2014-10-24
16:47
Search for anomalous single top quark production in association with a photon in pp collisions at $\sqrt{s}=8$ TeV. / Goldouzian, Reza (IPM, Tehran) /CMS Collaboration
A search for single top quark production through flavor-changing neutral currents at an anomalous $tq\gamma$ vertex is performed in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on a dataset corresponding to an integrated luminosity of 19.1 fb$^{-1}$ collected with the CMS detector. [...]
CMS-CR-2014-330.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

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2014-10-24
16:47
Model uncertainties in top-quark physics / Seidel, Markus (Hamburg U.) /ATLAS and CMS Collaborations
The ATLAS and CMS collaborations at the Large Hadron Collider (LHC) are studying the top quark in pp collisions at 7 and 8 TeV. Due to the large integrated luminosity, precision measurements of production cross-sections and properties are often limited by systematic uncertainties. [...]
CMS-CR-2014-326.- Geneva : CERN, 2014 - 6 p. Fulltext: PDF;
In : TOP2014: 7th International Workshop on Top Quark Physics, Cannes, France, 29 Sep - 3 Oct 2014

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2014-10-23
11:10
3rd generation SUSY searches at CMS / Sigamani, Michael (Gent U.) /CMS Collaboration
The latest results on searches for stop and sbottom squarks are presented. Searches for direct squark production in a variety of decay channels are reviewed. The results are based on 19.5 fb$^{-1}$ of LHC proton-proton collisions at $\sqrt{s}$=8 TeV taken with the CMS detector..
CMS-CR-2014-329.- Geneva : CERN, 2014 - 10 p. Fulltext: PDF;
In : Phenomenology 2014 Symposium, Univ., Pittsburgh, PA, USA, 5 - 7 May 2014

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2014-10-23
11:09
Search for s-channel single top-quark production in pp collisions at 8 TeV with the CMS experiment at the LHC / Merola, Mario (INFN, Naples) /CMS Collaboration
A search for single top-quark production in the s channel in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 8 TeV by the CMS detector at the LHC is presented. Leptonic decay modes of the top quark with an electron or muon in the final state are considered. [...]
CMS-CR-2014-328.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

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2014-10-23
11:09
Measurements of single top quark cross sections in pp collisions at 8 TeV with the CMS detector / Merola, Mario (INFN, Naples) /CMS Collaboration
Measurements are presented of the single top quark production in proton-proton collisions at the LHC at a centre-of-mass energy of 8 TeV, using data collected with the CMS experiment during 2012. The first analysis, in the t-channel single top production mode, considers decay channels where the W comes from the top decays into electron-neutrino or muon-neutrino. [...]
CMS-CR-2014-327.- Geneva : CERN, 2014 - 8 p. Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

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2014-10-23
11:09
Measurement of the Z boson production differential cross section as a function of transverse momentum in pp collisions at $\sqrt{s}$= 8 TeV / Lee, Sang Eun (CHEP, Taegu) /CMS Collaboration
A measurement is presented of the Z boson production differential cross section as a function of Z transverse momentum. The sample of proton-proton collisions collected by the CMS experiment at the LHC at $\sqrt{s}$ = 8 TeV corresponds to an integrated luminosity of $18.4~\pm 0.5$~\pbinv. [...]
CMS-CR-2014-322.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

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2014-10-23
11:09
Design options for the upgrade of the CMS electromagnetic calorimeter / Paramatti, Riccardo (INFN, Rome) /CMS Collaboration
The CMS scintillating lead-tungstate calorimeter was designed to operate for at least ten years at the LHC, assuming an instantaneous luminosity of $10^{34}$ cm$^{-2}$ s$^{-1}$. The measurements obtained with data collected in LHC Run1 (2010-2012) show that the detector has performed according to design specifications and will survive with excellent performance through the lifetime of the LHC. [...]
CMS-CR-2014-305.- Geneva : CERN, 2014 - 8 p. Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

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