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CERN Document Server Sök i 242 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.70 sekunder. 
1.
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
2.
Measurement of the hadronic activity in events with a Z and two jets and extraction of the cross section for the electroweak production of a Z with two jets in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The first measurement of the electroweak production cross section of a Z boson with two jets (Zjj) in pp collisions at $\sqrt{s}$ = 7 TeV is presented, based on a data sample recorded by the CMS experiment at the LHC with an integrated luminosity of 5 inverse femtobarns. The cross section is measured for the lljj (l = e, $\mu$) final state in the kinematic region $m_{ll} \gt$ 50 GeV, $m_{jj} \gt$ 120 GeV, transverse momenta $p_T^{j} \gt$ 25 GeV and pseudorapidity abs($\eta^{j}$) $\lt$ 4.0. [...]
arXiv:1305.7389; CMS-FSQ-12-019; CERN-PH-EP-2013-060; CMS-FSQ-12-019; CERN-PH-EP-2013-060.- Geneva : CERN, 2013-10 - 43 p. - Published in : JHEP 10 (2013) 062 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
3.
Measurement of masses in the $t\bar{t}$ system by kinematic endpoints in pp collisions at $\sqrt{s}$=7 TeV / CMS Collaboration
A simultaneous measurement of the top-quark, W-boson, and neutrino masses is reported for $t\bar{t}$ events selected in the dilepton final state from a data sample corresponding to an integrated luminosity of 5.0 inverse femtobarns collected by the CMS experiment in pp collisions at $\sqrt{s}$=7 TeV. The analysis is based on endpoint determinations in kinematic distributions. [...]
arXiv:1304.5783; CMS-TOP-11-027; CERN-PH-EP-2013-059; CMS-TOP-11-027; CERN-PH-EP-2013-059.- Geneva : CERN, 2013-06-18 - 28 p. - Published in : Eur. Phys. J. C 73 (2013) 2494 Fulltext: arXiv:1304.5783 - PDF; fermilab-pub-13-645-cms - PDF; Springer Open Access article: PDF; External link: FERMILABTODAY
4.
Search for a standard-model-like Higgs boson with a mass in the range 145 to 1000 GeV at the LHC / CMS Collaboration
A search for a standard-model-like Higgs boson in the H $\to$ WW and H $\to$ ZZ decay channels is reported, for Higgs boson masses in the range 145 < $m_H$ < 1000 GeV. The search is based upon proton-proton collision data samples corresponding to an integrated luminosity of up to 5.1 inverse femtobarns at $\sqrt{s}$ = 7 TeV and up to 5.3 inverse femtobarns at $\sqrt{s}$ = 8 TeV, recorded by the CMS experiment at the LHC. [...]
arXiv:1304.0213; CMS-HIG-12-034; CERN-PH-EP-2013-050; CMS-HIG-12-034; CERN-PH-EP-2013-050.- Geneva : CERN, 2013-06-14 - 43 p. - Published in : Eur. Phys. J. C 73 (2013) 2469 Fulltext: fermilab-pub-13-646-cms - PDF; arXiv:1304.0213 - PDF; Springer Open Access article: PDF; External link: FERMILABTODAY
5.
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
6.
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
7.
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
8.
Observation of a new boson with mass near 125 GeV in pp collisions at $\sqrt{s}$ = 7 and 8 TeV / CMS Collaboration
A detailed description is reported of the analysis used by the CMS Collaboration in the search for the standard model Higgs boson in pp collisions at the LHC, which led to the observation of a new boson. The data sample corresponds to integrated luminosities up to 5.1 inverse femtobarns at $\sqrt{s}$ = 7 TeV, and up to 5.3 inverse femtobarns at $\sqrt{s}$ = 8 TeV. [...]
arXiv:1303.4571; CMS-HIG-12-036; CERN-PH-EP-2013-035; CMS-HIG-12-036; CERN-PH-EP-2013-035.- Geneva : CERN, 2013-06-20 - 117 p. - Published in : JHEP 06 (2013) 081 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
9.
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
10.
Search for supersymmetry in hadronic final states with missing transverse energy using the variables $\alpha_T$ and b-quark multiplicity in pp collisions at $\sqrt{s}$ = 8 TeV / CMS Collaboration
An inclusive search for supersymmetric processes that produce final states with jets and missing transverse energy is performed in pp collisions at a centre-of-mass energy of 8 TeV. The data sample corresponds to an integrated luminosity of 11.7 inverse femtobarns collected by the CMS experiment at the LHC. [...]
arXiv:1303.2985; CMS-SUS-12-028; CERN-PH-EP-2013-037; CMS-SUS-12-028; CERN-PH-EP-2013-037.- Geneva : CERN, 2013-09-18 - 45 p. - Published in : Eur. Phys. J. C 73 (2013) 2568 Fulltext: fermilab-pub-13-228-cms - PDF; arXiv:1303.2985 - PDF; Springer Open Access article: PDF; External link: Rivet analyses reference

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