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Open AccessJournal ArticleDOI

Jet energy resolution in proton-proton collisions at s√=7 TeV recorded in 2010 with the ATLAS detector

Georges Aad, +2866 more
- 02 Mar 2013 - 
- Vol. 73, Iss: 3, pp 2306-2306
TLDR
In this article, the authors measured the jet energy resolution using data recorded with the ATLAS detector in proton-proton collisions at root s = 7 TeV, which corresponds to an integrated luminosity of 35 pb(-1).
Abstract
The measurement of the jet energy resolution is presented using data recorded with the ATLAS detector in proton-proton collisions at root s = 7 TeV. The sample corresponds to an integrated luminosity of 35 pb(-1). Jets are reconstructed from energy deposits measured by the calorimeters and calibrated using different jet calibration schemes. The jet energy resolution is measured with two different in situ methods which are found to be in agreement within uncertainties. The total uncertainties on these measurements range from 20 % to 10 % for jets within vertical bar y vertical bar < 2.8 and with transverse momenta increasing from 30 GeV to 500 GeV. Overall, the Monte Carlo simulation of the jet energy resolution agrees with the data within 10 %.

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Journal ArticleDOI

DELPHES 3: a modular framework for fast simulation of a generic collider experiment

TL;DR: Delphes as mentioned in this paper is a fast-simulation of a multipurpose detector for phenomenological studies, including a track propagation system embedded in a magnetic field, electromagnetic and hadron calorimeters, and a muon identification system.
Journal ArticleDOI

Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1

Georges Aad, +2891 more
TL;DR: Topological cell clustering is established as a well-performing calorimeter signal definition for jet and missing transverse momentum reconstruction in ATLAS and is exploited to apply a local energy calibration and corrections depending on the nature of the cluster.
Posted Content

First combination of Tevatron and LHC measurements of the top-quark mass

TL;DR: In this article, a combination of measurements of the mass of the top quark, $m_{\rm top}$, performed by the CDF and D0 experiments at the Tevatron collider and the ATLAS and CMS experiments at Large Hadron Collider (LHC) was presented.
Journal ArticleDOI

Performance of $b$-Jet Identification in the ATLAS Experiment

Georges Aad, +2815 more
TL;DR: In this paper, an independent b-tagging algorithm based on the reconstruction of muons inside jets as well as the b tagging algorithm used in the online trigger are also presented.
References
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Journal ArticleDOI

Geant4—a simulation toolkit

S. Agostinelli, +126 more
TL;DR: The Gelfant 4 toolkit as discussed by the authors is a toolkit for simulating the passage of particles through matter, including a complete range of functionality including tracking, geometry, physics models and hits.
Journal ArticleDOI

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Journal ArticleDOI

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Journal ArticleDOI

New generation of parton distributions with uncertainties from global QCD analysis

TL;DR: In this paper, a new generation of parton distribution functions with increased precision and quantitative estimates of uncertainties is presented, using a recently developed eigenvector-basis approach to the hessian method, which provides the means to quickly estimate the uncertainties of a wide range of physical processes at these high-energy hadron colliders, based on current knowledge of the parton distributions.
Book

The ATLAS Experiment at the CERN Large Hadron Collider

Georges Aad, +3032 more
TL;DR: The ATLAS detector as installed in its experimental cavern at point 1 at CERN is described in this paper, where a brief overview of the expected performance of the detector when the Large Hadron Collider begins operation is also presented.
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