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Precision measurements of the top quark mass from the Tevatron in the pre-LHC era

By Angela Barbaro Galtieri, Fabrizio Margaroli and Igor Volobouev

Abstract

The top quark is the heaviest of the six quarks of the Standard Model. Precise knowledge of its mass is important for imposing constraints on a number of physics processes, including interactions of the as yet unobserved Higgs boson. The Higgs boson is the only missing particle of the Standard Model, central to the electroweak symmetry breaking mechanism and generation of particle masses. In this Review, experimental measurements of the top quark mass accomplished at the Tevatron, a proton-antiproton collider located at the Fermi National Accelerator Laboratory, are described. Topologies of top quark events and methods used to separate signal events from background sources are discussed. Data analysis techniques used to extract information about the top mass value are reviewed. The combination of several most precise measurements performed with the two Tevatron particle detectors, CDF and \D0, yields a value of $\Mt = 173.2 \pm 0.9$ GeV/$c^2$.Comment: This version contains the most up-to-date top quark mass averag

Topics: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Publisher: 'IOP Publishing'
Year: 2011
DOI identifier: 10.1088/0034-4885/75/5/056201
OAI identifier: oai:arXiv.org:1109.2163

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