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A Search for $t\bar{t}$ Resonances in the Lepton Plus Jets Channel using 1.04 fb$^{-1}$ of $pp$ Collisions at $\sqrt{s} = 7$ TeV
/ Barisonzi, M; Becker, K; Bergeaas Kuutmann, E; Boek, T; Brooijmans, G; Calvet, S; Camacho Toro, R; Choudalakis, G; Febbraro, R; Ferrando, J et al.
A search for top quark pair ($t\bar{t}$) resonances in the lepton plus jets final states has been performed with the ATLAS experiment at the LHC. The search uses a data sample corresponding to an integrated luminosity of 1.04 fb$^{-1}$, and was recorded in 2011 at a proton-proton centre-of-mass energy of 7 TeV. [...]
ATLAS-COM-CONF-2011-141.-
Geneva : CERN, 2011 - 14 p.
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A Search for $t\bar{t}$ Resonances in the Lepton Plus Jets Channel in 1.04 fb$^{-1}$ of $pp$ Collisions at $\sqrt{s} = 7$ TeV
/ Barisonzi, M; Becker, K; Bergeaas Kuutmann, E; Boek, T; Brooijmans, G; Calvet, S; Camacho Toro, R; Choudalakis, G; Febbraro, R; Ferrando, J et al.
Many models of physics beyond the standard model predict the existence of new resonances that decay to top quark pairs. This paper describes a search for such resonances in the $\ell + jets$ final state in 1.04 fb$^{-1}$ of data collected by the ATLAS experiment in $pp$ collisions at $\sqrt{s} = 7$ TeV in 2011. [...]
ATL-COM-PHYS-2011-989.-
Geneva : CERN, 2011 - 51 p.
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Monte Carlo samples used for top physics : Top Working Group Note IX
/ Allwood-Spires, S; Barisonzi, M; Beauchemin, H; Bruneliere, R; Buchanan, J; Castro, N F; Devetak, E; Feng, C; Ferrando, J; Hawkings, R et al.
This note documents the standard Monte Carlo samples to be used for top rediscovery analyses with 7 TeV data. The dataset numbers, cross sections and statistics are detailed. [...]
ATL-COM-PHYS-2010-836.-
Geneva : CERN, 2010 - 38 p.
Access to fulltext document: PDF; External link: Approved Note
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Background studies for top-pair production in lepton plus jets final states in sqrt(s)=7 TeV ATLAS data
/ Abi, B; Acharya, B; Adelman, J; Allwood-Spires, S; Arguin, J-F; Bachacou, H; Barisonzi, M; Beauchemin, H; Bellagamba, L; Benekos, N et al.
The search for top quark pairs at the LHC requires the selection of events with leptons, high jet multiplicity, b-tagged jets and missing transverse energy, and the study of control samples with lower jet multiplicity to evaluate the backgrounds. A first study of the backgrounds in the lepton plus jets channel is presented using 295 nb^-1 of ATLAS pp collision data taken at 7 TeV, including a data-driven determination of the contribution QCD multi-jet events..
ATLAS-COM-CONF-2010-085.-
Geneva : CERN, 2010 - 10 p.
Access to fulltext document: PDF; External link: Approved Note
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Search for top pair candidate events in ATLAS at sqrt(s)=7 TeV
/ Abi, B; Acharya, B; Adelman, J; Allwood-Spires, S; Arguin, J-F; Bachacou, H; Barisonzi, M; Beauchemin, H; Bellagamba, L; Benekos, N et al.
A search is performed for events consistent with top quark pair production in 280 nb^-1 of ATLAS pp collision data taken at sqrt(s)=7 TeV. Several candidate events are observed, in both the lepton plus jets and dilepton topologies. [...]
ATLAS-COM-CONF-2010-046.-
Geneva : CERN, 2010 - 12 p.
Access to fulltext document: PDF; External link: Approved Note
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8.
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Monte Carlo samples used for top physics
/ Allwood-Spires, S ; Barisonzi, M ; Beauchemin, H ; Bruneliere, R ; Buchanan, J ; Castro, N F ; Devetak, E ; Feng, C ; Ferrando, J ; Hawkings, R et al.
This note documents the standard Monte Carlo samples to be used for top rediscovery analyses with 7 TeV data. The dataset numbers, cross sections and statistics are detailed. [...]
ATL-PHYS-INT-2010-132.-
Geneva : CERN, 2010 - 38 p.
Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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Performance of the ATLAS Inner Detector Track and Vertex Reconstruction in the High Pile-Up LHC Environment
/ Adelman, J; Andreazza, A; Elsing, M; Gadatsch, S; Gray, HM; Pagan Griso, S; Salzburger, A; Selbach, K; Wasicki, C; Wildauer, A
Excellent LHC performance has resulted in more than 5~fb$^{-1}$ of data being delivered to ATLAS in 2011. Partly, this was achieved by increasing the average number of interactions per bunch crossing. [...]
ATL-COM-PHYS-2012-106.-
Geneva : CERN, 2012 - 17 p.
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