Measurement of the top quark mass in the lepton+jets final state with the matrix element method

Abstract

We present a measurement of the top quark mass with the Matrix Element method in the lepton+jets final state. As the energy scale for calorimeter jets represents the dominant source of systematic uncertainty, the Matrix Element likelihood is extended by an additional parameter, which is defined as a global multiplicative factor applied to the standard energy scale. The top quark mass is obtained from a fit that yields the combined statistical and systematic jet energy scale uncertainty. Using a data set of 370 pb-1 taken with the D0 experiment at Run II of the Fermilab Tevatron Collider, the mass of the top quark is measured using topological information to be: mtop(topo) = 169.2 +5.0-7.4 (stat.+JES) +1.5-1.4 (syst.) GeV, and when information about identified $b$ jets is included: mtop(b-tag) = 170.3 +4.1-4.5 (stat.+JES) +1.2-1.8 (syst.) GeV. The measurements yield a jet energy scale consistent with the reference scale.

submitted to Phys. Rev. D, 26 pages

Cited by in corpus (9)

• Non-perturbative QCD Effects and the Top Mass at the Tevatron
• Jets in Hadron-Hadron Collisions
• Evidence for production of single top quarks and first direct measurement of |Vtb|
• Precise measurement of the top quark mass from lepton+jets events at D0
• Measurement of the top quark mass in the lepton+jets channel using the Ideogram Method
• Review of Top Quark Physics Results
• Review of Properties of the Top Quark from Measurements at the Tevatron
• Search for a Higgs boson produced in association with a Z boson in ppbar collisions
• Independent measurement of the top quark mass and the light- and bottom-jet energy scales at hadron colliders