CERN Accelerating science

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1.
Measurement of the top pair production cross-section in 8 TeV proton--proton collisions using kinematic information in the lepton+jets final state with ATLAS / ATLAS Collaboration
A measurement is presented of the tt¯ inclusive production cross-section in pp collisions at a center-of-mass energy of s=8 TeV using data collected by the ATLAS detector at the CERN Large Hadron Collider. The measurement was performed in the lepton+jets final state using a data set corresponding to an integrated luminosity of 20.3 fb1. [...]
arXiv:1504.04251; CERN-PH-EP-2015-024; CERN-PH-EP-2015-024.- Geneva : CERN, 2015-06-24 - 25 p. - Published in : Phys. Rev. D 91 (2015) 112013 APS Open Access article: PDF; Fulltext: PDF; External links: Previous draft version; Preprint
2.
Jet mass and substructure of inclusive jets in s = 7 TeV pp collisions with the ATLAS experiment / ATLAS Collaboration
Recent studies have highlighted the potential of jet substructure techniques to identify the hadronic decays of boosted heavy particles. These studies all rely upon the assumption that the internal substructure of jets generated by QCD radiation is well understood. [...]
arXiv:1203.4606; CERN-PH-EP-2012-031; CERN-PH-EP-2012-031.- Geneva : CERN, 2012 - 53 p. - Published in : JHEP 05 (2012) 128 Fulltext: PDF; Springer Open Access article: PDF; External links: all figures including auxiliary figures; Rivet analyses reference
3.
Observation of spin correlation in tt¯ events from pp collisions at s = 7 TeV using the ATLAS detector / ATLAS Collaboration
A measurement of spin correlation in tt¯ production is reported using data collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 2.1 fb1. Candidate events are selected in the dilepton topology with large missing transverse energy and at least two jets. [...]
arXiv:1203.4081; CERN-PH-EP-2012-074; CERN-PH-EP-2012-074.- Geneva : CERN, 2012 - 20 p. - Published in : Phys. Rev. Lett. 108 (2012) 212001 APS Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
4.
Search for the Standard Model Higgs boson in the diphoton decay channel with 4.9 fb1 of pp collisions at s=7 TeV with ATLAS / ATLAS Collaboration
A search for the Standard Model Higgs boson is performed in the diphoton decay channel. The data used corresponds to an integrated luminosity of 4.9 fb-1 collected with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of sqrt(s) = 7 TeV. [...]
arXiv:1202.1414; CERN-PH-EP-2012-013; CERN-PH-EP-2012-013.- Geneva : CERN, 2012 - 6 p. - Published in : Phys. Rev. Lett. 108 (2012) 111803 APS Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
5.
Search for the Standard Model Higgs boson in the decay channel HZZ()4l with 4.8 fb1 of pp collisions at s=7 TeV with ATLAS / ATLAS Collaboration
This Letter presents a search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->l+l-l'+l'-, where l,l'=e or mu, using proton-proton collisions at sqrt(s)=7 TeV recorded with the ATLAS detector and corresponding to an integrated luminosity of 4.8 fb^-1. The four-lepton mass distribution is compared with Standard Model background expectations to derive upper limits on the cross section of a Standard Model Higgs boson with a mass between 110 GeV and 600 GeV which exclude the mass ranges 134-156 GeV, 182-233 GeV, 256-265 GeV and 266-415 GeV at the 95% confidence level. [...]
arXiv:1202.1415; CERN-PH-EP-2012-014; CERN-PH-EP-2012-014.- Geneva : CERN, 2013-07-16 - 20 p. - Published in : Phys. Lett. B 710 (2012) 383-402 Elsevier Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
6.
Search for same-sign top-quark production and fourth-generation down-type quarks in pp collisions at s = 7 TeV with the ATLAS detector / ATLAS Collaboration
A search is presented for same-sign top-quark production and down-type heavy quarks of charge -1/3 in events with two isolated leptons (electrons or muons) that have the same electric charge, at least two jets and large missing transverse momentum. The data are selected from pp collisions at sqrt(s)=7 TeV recorded by the ATLAS detector and correspond to an integrated luminosity of 1.04 inverse femtobarns. [...]
arXiv:1202.5520; CERN-PH-EP-2012-020; CERN-PH-EP-2012-020.- Geneva : CERN, 2012 - 23 p. - Published in : JHEP 04 (2012) 069 Fulltext: PDF; Springer Open Access article: PDF; External link: all figures including auxiliary figures
7.
Search for supersymmetry with jets, missing transverse momentum and at least one hadronically decaying tau lepton in proton-proton collisions at s = 7 TeV with the ATLAS detector / ATLAS Collaboration
A search for production of supersymmetric particles in final states containing jets, missing transverse momentum, and at least one hadronically decaying tau lepton is presented. The data were recorded by the ATLAS experiment in s = 7 TeV proton-proton collisions at the Large Hadron Collider. [...]
arXiv:1204.3852; CERN-PH-EP-2012-076; CERN-PH-EP-2012-076.- Geneva : CERN, 2013-07-16 - 18 p. - Published in : Phys. Lett. B 714 (2012) 197-214 Elsevier Open Access article: PDF; Fulltext: arXiv:1204.3852 - PDF; S0370269312007009 - XML; External link: all figures including auxiliary figures
8.
Combined search for the Standard Model Higgs boson using up to 4.9 fb1 of pp collision data at s = 7 TeV with the ATLAS detector at the LHC / ATLAS Collaboration
A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb-1 to 4.9 fb-1 of pp collisions collected at sqrt(s) = 7 TeV is presented. The Higgs boson mass ranges 112.9-115.5 GeV, 131-238 GeV and 251-466 GeV are excluded at the 95% confidence level (CL), while the range 124-519 GeV is expected to be excluded in the absence of a signal. [...]
arXiv:1202.1408; CERN-PH-EP-2012-019; CERN-PH-EP-2012-019.- Geneva : CERN, 2013-07-16 - 18 p. - Published in : Phys. Lett. B 710 (2012) 49-66 Elsevier Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
9.
Measurement of the azimuthal anisotropy for charged particle production in sNN = 2.76 TeV lead-lead collisions with the ATLAS detector / ATLAS Collaboration
Differential measurements of charged particle azimuthal anisotropy are presented for lead-lead collisions at sNN = 2.76 TeV with the ATLAS detector at the LHC, based on an integrated luminosity of approximately 8 μb1. This anisotropy is characterized via a Fourier expansion of the distribution of charged particles in azimuthal angle (ϕ), with the coefficients vn denoting the magnitude of the anisotropy. [...]
arXiv:1203.3087; CERN-PH-EP-2012-035; CERN-PH-EP-2012-035.- Geneva : CERN, 2012 - 47 p. - Published in : Phys. Rev. C 86 (2012) 014907 APS Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
10.
Measurement of tt¯ production with a veto on additional central jet activity in pp collisions at s = 7 TeV using the ATLAS detector / ATLAS Collaboration
A measurement of the jet activity in ttbar events produced in proton-proton collisions at a centre-of-mass energy of 7 TeV is presented, using 2.05 fb^-1 of integrated luminosity collected by the ATLAS detector at the Large Hadron Collider. The ttbar events are selected in the dilepton decay channel with two identified b-jets from the top quark decays. [...]
arXiv:1203.5015; CERN-PH-EP-2012-062; CERN-PH-EP-2012-062.- Geneva : CERN, 2012-06-21 - 27 p. - Published in : Eur. Phys. J. C 72 (2012) 2043 Fulltext: PDF; Springer Open Access article: PDF; External links: all figures including auxiliary figures; Rivet analyses reference

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