6533b851fe1ef96bd12aa243
RESEARCH PRODUCT
Top mass reconstruction in ATLAS
A. Neusiedlsubject
QuarkPhysicsHistoryTop quarkParticle physicsLarge Hadron ColliderHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyElectroweak interactionTechnicolorTop quark condensateComputer Science ApplicationsEducationNuclear physicsPhysics::Atomic and Molecular ClustersHiggs bosonHigh Energy Physics::ExperimentDetectors and Experimental TechniquesLeptondescription
The top-quark mass is a fundamental parameter of the Standard Model. After the discovery of the top quark, the measurements of its properties were of substantial interest. Within the framework of the SM, the top-quark mass can be used in combination with other electroweak precision measurements to constrain the mass of the yet unobserved Higgs boson.\nIn the new era of the Large Hadron Collider (LHC), the first top quarks have been produced in Europe in proton-proton collisions at a center-of-mass energy of 7~TeV. The top-quark mass measurement of ATLAS in the so called lepton+jets channel with 35~pb$^{-1}$ integrated luminosity will be presented. In this early data-taking period the largest uncertainty on this measurement comes from the knowledge of the jet energy scale. It will be shown how this uncertainty is determined and which methods are used for measuring the top-quark mass.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-05-28 | Journal of Physics: Conference Series |