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Top Quark Mass Measurement in the lepton plus jets Channel Using a Matrix Element Method and in situ Jet Energy Calibration

Aaltonen, T; Gonzalez, BA; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; ... CDF Collaboration, .; + view all (2010) Top Quark Mass Measurement in the lepton plus jets Channel Using a Matrix Element Method and in situ Jet Energy Calibration. PHYS REV LETT , 105 (25) , Article 252001. 10.1103/PhysRevLett.105.252001. Green open access

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Abstract

A precision measurement of the top quark mass m(t) is obtained using a sample of t (t) over bar events from p (p) over bar collisions at the Fermilab Tevatron with the CDF II detector. Selected events require an electron or muon, large missing transverse energy, and exactly four high-energy jets, at least one of which is tagged as coming from a b quark. A likelihood is calculated using a matrix element method with quasi-Monte Carlo integration taking into account finite detector resolution and jet mass effects. The event likelihood is a function of mt and a parameter Delta(JES) used to calibrate the jet energy scale in situ. Using a total of 1087 events in 5.6 fb(-1) of integrated luminosity, a value of m(t) 173.0 +/- 1.2 GeV/c(2) is measured.

Type: Article
Title: Top Quark Mass Measurement in the lepton plus jets Channel Using a Matrix Element Method and in situ Jet Energy Calibration
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.105.252001
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.105.252001
Language: English
Additional information: © 2010 The American Physical Society
Keywords: QCD, COLLISIONS
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery-pp.ucl.ac.uk/id/eprint/1299546
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