CERN Accelerating science

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1.
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
2.
Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC / CMS Collaboration
Results are presented from searches for the standard model Higgs boson in proton-proton collisions at $\sqrt{s}$=7 and 8 TeV in the CMS experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.1 inverse femtobarns at 7 TeV and 5.3 inverse femtobarns at 8 TeV. The search is performed in five decay modes: $\gamma\gamma$, ZZ, WW, $\tau^+ \tau^-$, and $b\bar{b}$. [...]
arXiv:1207.7235; CMS-HIG-12-028; CERN-PH-EP-2012-220; CMS-HIG-12-028; CERN-PH-EP-2012-220.- Geneva : CERN, 2012-08-17 - 32 p. - Published in : Phys. Lett. B 716 (2012) 30-61 Elsevier Open Access article: PDF; Fulltext: PDF; External links: Press Release; Interactions.org article; DOE Science Highlight
In : Higgs booklet, pp.30
3.
Exclusive $\gamma\gamma \to \mu^{+}\mu^{-}$ production in proton-proton collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
A measurement of the exclusive two-photon production of muon pairs in proton-proton collisions at $\sqrt{s}$=7 TeV, pp → pμ + μ −p, is reported using data corresponding to an integrated luminosity of 40 pb−1. For muon pairs with invariant mass greater than 11.5 GeV, transverse momentum p T (μ) > 4 GeV and pseudorapidity |η(μ)| < 2.1, a fit to the dimuon p T (μ + μ −) distribution results in a measured cross section of σ(p → pμ + μ −p) = 338+058−055 (stat.) ± 0.16 (syst.) ± 0.14 (lumi.) pb, consistent with the theoretical prediction evaluated with the event generator Lpair. [...]
arXiv:1111.5536; CERN-PH-EP-2011-187; CMS-FWD-10-005; CMS-FWD-10-005; CERN-PH-EP-2011-187.- Geneva : CERN, 2012 - 35 p. - Published in : JHEP 01 (2012) 052 Fulltext: PDF; Springer Open Access article: PDF; External link: Rivet analyses reference
4.
J/$\psi$ and $\psi$(2S) production in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
A measurement of the J/$\psi$ and psi(2S) production cross sections in pp collisions at $\sqrt{s}$=7 TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 inverse picobarns. [...]
arXiv:1111.1557; CMS-BPH-10-014; CERN-PH-EP-2011-177; CMS-BPH-10-014; CERN-PH-EP-2011-177.- Geneva : CERN, 2012 - 39 p. - Published in : JHEP 02 (2012) 011 Fulltext: fermilab-pub-11-745-cms - PDF; fermi - PDF; arXiv:1111.1557 - PDF; Springer Open Access article: PDF; External link: DURHAM
5.
Measurement of the Rapidity and Transverse Momentum Distributions of Z Bosons in pp Collisions at $\sqrt{s}$=7 TeV / CMS Collaboration
Measurements of the normalized rapidity (y) and transverse momentum (qT) distributions of Drell-Yan muon and electron pairs in the Z-boson mass region (60<M(ll)<120 GeV) are reported. The results are obtained using a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 inverse picobarns. [...]
arXiv:1110.4973; CMS-EWK-10-010; CERN-PH-EP-2011-169; CMS-EWK-10-010; CERN-PH-EP-2011-169.- Geneva : CERN, 2012 - 21 p. - Published in : Phys. Rev. D 85 (2012) 032002 APS Open Access article: PDF; Fulltext: PDF; External link: Rivet analyses reference
6.
Jet production rates in association with W and Z bosons in pp collisions at sqrt(s) = 7 TeV / CMS Collaboration
Measurements of jet production rates in association with W and Z bosons for jet transverse momenta above 30 GeV are reported, using a sample of proton-proton collision events recorded by CMS at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 36 inverse picobarns. The study includes the measurement of the normalized inclusive rates of jets sigma(V + >= n jets)/sigma(V), where V represents either a W or a Z. [...]
arXiv:1110.3226; CERN-PH-EP-2011-125; CMS-EWK-10-012; CMS-EWK-10-012; CERN-PH-EP-2011-125.- Geneva : CERN, 2012 - 45 p. - Published in : JHEP 01 (2012) 010 Fulltext: PDF; Springer Open Access article: PDF; External links: FERMILABTODAY; DURHAM
7.
Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC / CMS Collaboration
A multivariate likelihood method to measure electroweak couplings with the Drell-Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant mass, and decay angle distributions. [...]
arXiv:1110.2682; CMS-EWK-11-003; CERN-PH-EP-2011-159; CMS-EWK-11-003; CERN-PH-EP-2011-159.- Geneva : CERN, 2011 - 41 p. - Published in : Phys. Rev. D 84 (2011) 112002 APS Open Access article: PDF; Fulltext: arXiv:1110.2682 - PDF; fermi - PDF; fermilab-pub-11-749-cms - PDF; External link: FERMILABTODAY
8.
Measurement of energy flow at large pseudorapidities in pp collisions at $\sqrt{s}$ = 0.9 and 7 TeV / CMS Collaboration
The energy flow, dE/d(eta), is studied at large pseudorapidities in proton-proton collisions at the LHC, for centre-of-mass energies of 0.9 and 7 TeV. The measurements are made in the pseudorapidity range 3.15 < |eta| < 4.9, for both minimum-bias events and events with at least two high-momentum jets, using the CMS detector. [...]
arXiv:1110.0211; CERN-PH-EP-2011-086; CMS-FWD-10-011; CMS-FWD-10-011; CERN-PH-EP-2011-086.- Geneva : CERN, 2011-11 - 37 p.
Fulltext: PDF; Springer Open Access article: PDF; External link: Rivet analyses reference
9.
Forward Energy Flow, Central Charged-Particle Multiplicities, and Pseudorapidity Gaps in W and Z Boson Events from pp Collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
A study of forward energy flow and central charged-particle multiplicity in events with W and Z bosons decaying into leptons is presented. The analysis uses a sample of 7 TeV pp collisions, corresponding to an integrated luminosity of 36 inverse picobarns, recorded by the CMS experiment at the LHC. [...]
arXiv:1110.0181; CERN-PH-EP-2011-141; CMS-FWD-10-008; CMS-FWD-10-008; CERN-PH-EP-2011-141.- Geneva : CERN, 2012-01-20 - 28 p. - Published in : Eur. Phys. J. C 72 (2012) 1839 Fulltext: PDF; Springer Open Access article: PDF;
10.
Performance of $\tau$-lepton reconstruction and identification in CMS / CMS Collaboration
The performance of tau-lepton reconstruction and identification algorithms is studied using a data sample of proton-proton collisions at sqrt(s)=7 TeV, corresponding to an integrated luminosity of 36 inverse picobarns collected with the CMS detector at the LHC. The tau leptons that decay into one or three charged hadrons, zero or more short-lived neutral hadrons, and a neutrino are identified using final-state particles reconstructed in the CMS tracker and electromagnetic calorimeter. [...]
arXiv:1109.6034; CERN-PH-EP-2011-137; CMS-TAU-11-001; CMS-TAU-11-001; CERN-PH-EP-2011-137.- Geneva : CERN, 2012-01 - 32 p. - Published in : JINST 7 (2012) P01001 Fulltext: fermi - PDF; arXiv:1109.6034 - PDF; fermilab-pub-11-818-cms - PDF; IOP Open Access article: PDF;

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