A search for production of supersymmetric particles in final states containing jets, missing transverse momentum, and at least one hadronically decaying τ lepton is presented. The data were recorded by the ATLAS experiment in s= 7 TeV... more
A search for production of supersymmetric particles in final states containing jets, missing transverse momentum, and at least one hadronically decaying τ lepton is presented. The data were recorded by the ATLAS experiment in s= 7 TeV proton–proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation was observed in 2.05 fb− 1 of data. The results are interpreted in the context of gauge mediated supersymmetry breaking models with Mmess= 250 TeV, N5= 3, μ> 0, and Cgrav= 1. The ...
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Abstract This document presents a search for the production of supersymmetric particles decaying into final states with three electrons or muons and missing transverse momentum. The analysis uses 2.06 fb− 1 of√ s= 7 TeV proton-proton... more
Abstract This document presents a search for the production of supersymmetric particles decaying into final states with three electrons or muons and missing transverse momentum. The analysis uses 2.06 fb− 1 of√ s= 7 TeV proton-proton collision data delivered by the ...
The results of a search for pair production of the lighter scalar partners of top quarks (t˜ 1) in 2.05 fb− 1 of pp collisions at s= 7 TeV using the ATLAS experiment at the LHC are reported. Scalar top quarks are searched for in events... more
The results of a search for pair production of the lighter scalar partners of top quarks (t˜ 1) in 2.05 fb− 1 of pp collisions at s= 7 TeV using the ATLAS experiment at the LHC are reported. Scalar top quarks are searched for in events with two same flavour opposite-sign leptons (e, μ) with invariant mass consistent with the Z boson mass, large missing transverse momentum and jets in the final state. At least one of the jets is identified as originating from a b-quark. No excess over Standard Model expectations is found. The results are ...
This Letter presents a search for contact interactions in the dielectron and dimuon channels using data from proton–proton collisions produced by the LHC at s= 7 TeV and recorded by the ATLAS detector. The data sample, collected in 2011,... more
This Letter presents a search for contact interactions in the dielectron and dimuon channels using data from proton–proton collisions produced by the LHC at s= 7 TeV and recorded by the ATLAS detector. The data sample, collected in 2011, corresponds to an integrated luminosity of 1.08 and 1.21 fb− 1 in the e+ e− and μ+ μ− channels, respectively. No significant deviations from the standard model are observed. Using a Bayesian approach with a prior flat in 1/Λ2, the following 95% CL lower limits are placed on the energy scale ...
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ABSTRACT
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The ATLAS inner detector is used to reconstruct secondary vertices due to hadronic interactions of primary collision products, so probing the location and amount of material in the inner region of ATLAS. Data collected in 7 TeV pp... more
The ATLAS inner detector is used to reconstruct secondary vertices due to hadronic interactions of primary collision products, so probing the location and amount of material in the inner region of ATLAS. Data collected in 7 TeV pp collisions at the LHC, with a minimum bias trigger, are used for comparisons with simulated events. The reconstructed secondary vertices have spatial resolutions ranging from ∼ 200μm to 1 mm. The overall material description in the simulation is validated to within an experimental uncertainty of about 7%. This will lead to a better understanding of the reconstruction of various objects such as tracks, leptons, jets, and missing transverse momentum.
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ABSTRACT
Flavor tagged time-dependent angular analysis of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msubsup><mi>B</mi><mi>s</mi><mn>0</mn></msubsup><mo stretchy="false">→</mo><mi>J</mi><mo>/</mo><mi>ψ</mi><mi>ϕ</mi></math>
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ABSTRACT
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ABSTRACT See paper for full list of authors - 6 pages plus author list (51 pages total), 6 figures, 7 tables, submitted to JHEP, All figures including auxiliary figures are available at... more
ABSTRACT See paper for full list of authors - 6 pages plus author list (51 pages total), 6 figures, 7 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-05/
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ABSTRACT See paper for full list of authors - 20 pages plus author list (44 pages total), 6 figures, 5 tables, submitted to JHEP, All figures including auxiliary figures are available at... more
ABSTRACT See paper for full list of authors - 20 pages plus author list (44 pages total), 6 figures, 5 tables, submitted to JHEP, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/BPHY-2012-05
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ABSTRACT See paper for full list of authors - 35 pages plus author list (60 pages total), 14 figures, 7 tables, submitted to JHEP, All figures including auxiliary figures are available at... more
ABSTRACT See paper for full list of authors - 35 pages plus author list (60 pages total), 14 figures, 7 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-04/ - ERRATUM : JHEP 01 (2014) 109 10.1007/JHEP01(2014)109
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ABSTRACT See paper for full list of authors - 35 pages plus author list (56 pages total), 17 figures, 4 tables, submitted to JHEP, All figures including auxiliary figures are available at... more
ABSTRACT See paper for full list of authors - 35 pages plus author list (56 pages total), 17 figures, 4 tables, submitted to JHEP, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2012-04/
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... Butler, Bart; Butler, John; Buttar, Craig; Butterworth, Jonathan; Buttinger, William; Byatt, Tom; Cabrera Urbán, Susana; Caforio, Davide ... Santamarina Rios, Cibran; Santoni, Claudio; Santonico, Rinaldo; Santos, Helena; Saraiva,... more
... Butler, Bart; Butler, John; Buttar, Craig; Butterworth, Jonathan; Buttinger, William; Byatt, Tom; Cabrera Urbán, Susana; Caforio, Davide ... Santamarina Rios, Cibran; Santoni, Claudio; Santonico, Rinaldo; Santos, Helena; Saraiva, João; Sarangi, Tapas; Sarkisyan-Grinbaum, Edward ...
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ABSTRACT See paper for full list of authors - 9 pages plus author list (22 pages total), 4 figures, 3 tables, submitted to Physics Letters B