CERN Accelerating science

CERN Document Server Sök i 273 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.67 sekunder. 
1.
Geometry and physics of the Geant4 toolkit for high and medium energy applications / Apostolakis, J (CERN) ; Asai, M (SLAC) ; Bogdanov, A G (Moscow Phys. Eng. Inst.) ; Burkhardt, H (CERN) ; Cosmo, G (CERN) ; Elles, S (Annecy, LAPP) ; Folger, G (CERN) ; Grichine, V M (CERN ; Lebedev Inst.) ; Gumplinger, P (TRIUMF) ; Heikkinen, A (Helsinki Inst. of Phys.) et al.
The current status of the Geant4 toolkit and the recent developments for the geometry, electromagnetic and hadronic physics for medium and high energy are presented. The focus of many recent improvements of the toolkit are key applications including the simulation of large Hadron collider (LHC) experiments at CERN. [...]
2009 - 15 p. - Published in : Radiat. Phys. Chem. 78 (2009) 859-873
2.
The performance of the CMS muon detector in proton-proton collisions at $\sqrt{s}$ = 7 TeV at the LHC / CMS Collaboration
The performance of all subsystems of the CMS muon detector has been studied by using a sample of proton--proton collision data at $\sqrt{s}$ = 7 TeV collected at the LHC in 2010 that corresponds to an integrated luminosity of approximately 40 inverse picobarns. The measured distributions of the major operational parameters of the drift tube (DT), cathode strip chamber (CSC), and resistive plate chamber (RPC) systems met the design specifications. [...]
arXiv:1306.6905; CMS-MUO-11-001; CERN-PH-EP-2013-072; CMS-MUO-11-001; CERN-PH-EP-2013-072.- Geneva : CERN, 2013-11-04 - 101 p. - Published in : JINST 8 (2013) P11002 Fulltext: PDF; IOP Open Access article: PDF; External link: FERMILABTODAY
3.
Measurement of the $\Upsilon$(1S), $\Upsilon$(2S), and $\Upsilon$(3S) cross sections in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The $\Upsilon$(1S), $\Upsilon$(2S), and $\Upsilon$(3S) production cross sections are measured using a data sample corresponding to an integrated luminosity of 35.8 $\pm$ 1.4 inverse picobarns of proton-proton collisions at $\sqrt{s}$ = 7 TeV, collected with the CMS detector at the LHC. The Upsilon resonances are identified through their decays to dimuons. [...]
arXiv:1303.5900; CMS-BPH-11-001; CERN-PH-EP-2012-373; CMS-BPH-11-001; CERN-PH-EP-2012-373.- Geneva : CERN, 2013-11-25 - 25 p. - Published in : Phys. Lett. B 727 (2013) 101-125 Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
4.
A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider / CMS Collaboration
The Higgs boson was postulated nearly five decades ago within the framework of the standard model of particle physics and has been the subject of numerous searches at accelerators around the world. Its discovery would verify the existence of a complex scalar field thought to give mass to three of the carriers of the electroweak force—the W+, W–, and Z0 bosons—as well as to the fundamental quarks and leptons. [...]
Geneva : CERN, 2012 - 16 p. - Published in : Science 338 (2012) 1569-1575 Preprint: PDF; External link: Supplementary material
In : Breakthrough of the year
5.
Studies of jet mass in dijet and W/Z+jet events / CMS Collaboration
Invariant mass spectra for jets reconstructed using the anti-kt and Cambridge-Aachen algorithms are studied for different jet "grooming" techniques in data corresponding to an integrated luminosity of 5 inverse femtobarns, recorded with the CMS detector in proton-proton collisions at the LHC at a center-of-mass energy of 7 TeV. Leading-order QCD predictions for inclusive dijet and W/Z+jet production combined with parton-shower Monte Carlo models are found to agree overall with the data, and the agreement improves with the implementation of jet grooming methods used to distinguish merged jets of large transverse momentum from softer QCD gluon radiation..
arXiv:1303.4811; CMS-SMP-12-019; CERN-PH-EP-2013-016; CMS-SMP-12-019; CERN-PH-EP-2013-016.- Geneva : CERN, 2013-05-17 - 49 p. - Published in : JHEP 05 (2013) 090 Fulltext: PDF; Springer Open Access article: PDF; External links: Rivet analyses reference; Rivet analyses reference; Rivet analyses reference
6.
Measurement of associated production of vector bosons and $t\bar{t}$ at $\sqrt{s}$= 7 TeV / CMS Collaboration
The first measurement of vector-boson production associated with a top quark-antiquark pair in proton-proton collisions at $\sqrt{s}$ = 7 TeV is presented. The results are based on a dataset corresponding to an integrated luminosity of 5.0 inverse femtobarns, recorded by the CMS detector at the LHC in 2011. [...]
arXiv:1303.3239; CMS-TOP-12-014; CERN-PH-EP-2013-033; CMS-TOP-12-014; CERN-PH-EP-2013-033.- Geneva : CERN, 2013-04-25 - 27 p. - Published in : Phys. Rev. Lett. 110 (2013) 172002 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
7.
Search for narrow resonances using the dijet mass spectrum in pp collisions at $\sqrt{s}$ = 8 TeV / CMS Collaboration
Results are presented of a search for the production of new particles decaying to pairs of partons (quarks, antiquarks, or gluons), in the dijet mass spectrum in proton-proton collisions at $\sqrt{s}$ = 8 TeV. The data sample corresponds to an integrated luminosity of 4.0 inverse femtobarns, collected with the CMS detector at the LHC in 2012. [...]
arXiv:1302.4794; CMS-EXO-12-016; CERN-PH-EP-2013-015; CMS-EXO-12-016; CERN-PH-EP-2013-015.- Geneva : CERN, 2013-06-17 - 16 p. - Published in : Phys. Rev. D 87 (2013) 114015 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
8.
Measurement of the X(3872) production cross section via decays to $J/\psi \pi^+ \pi^-$ in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The production of the X(3872) is studied in pp collisions at $\sqrt{s}$ = 7 TeV, using decays to $J/\psi \pi^+ \pi^-$, where the $J/\psi$ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8 inverse femtobarns. [...]
arXiv:1302.3968; CMS-BPH-11-011; CERN-PH-EP-2013-014; CMS-BPH-11-011; CERN-PH-EP-2013-014.- Geneva : CERN, 2013-04-29 - 33 p. - Published in : JHEP 04 (2013) 154 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
9.
Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton-proton collisions at 7 TeV / CMS Collaboration
A search for a neutral Higgs boson decaying to a pair of b quarks, and produced in association with at least one additional b quark, is presented. Multijet final states with three jets identified as originating from b quarks, at least one of which may include a non-isolated muon, are studied. [...]
arXiv:1302.2892; CMS-HIG-12-033; CERN-PH-EP-2012-375; CMS-HIG-12-033; CERN-PH-EP-2012-375.- Geneva : CERN, 2013-05-24 - 26 p. - Published in : Phys. Lett. B 722 (2013) 207-232 Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
10.
Search for new physics in final states with a lepton and missing transverse energy in pp collisions at the LHC / CMS Collaboration
This letter describes the search for an enhanced production rate of events with a charged lepton and a neutrino in high-energy pp collisions at the LHC. The analysis uses data collected with the CMS detector, with an integrated luminosity of 5.0 inverse femtobarns at $\sqrt{s}$ = 7 TeV, and a further 3.7 inverse femtobarns at $\sqrt{s}$ = 8 TeV. [...]
arXiv:1302.2812; CMS-EXO-12-010; CERN-PH-EP-2013-010; CMS-EXO-12-010; CERN-PH-EP-2013-010.- Geneva : CERN, 2013-04-08 - 17 p. - Published in : Phys. Rev. D 87 (2013) 072005 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint

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