Top Quark Mass Measurement in the lepton plus jets Channel Using a Matrix Element Method and in situ Jet Energy Calibration
Name
Aaltonen-2010-Top Quark Mass Measu.pdf
Size
227.01 KB
Format
Adobe PDF
Checksum (MD5)
808345f36ca600b95c6e5a3bc3083fad
Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Makhoul, Khaldoun
Paus, Christoph M. E.
Bauer, Gerry P
Date Issued
December 2010
Journal
Physical review letters
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Top Quark Mass Measurement in the lepton+jets Channel Using a Matrix Element Method and in situ Jet Energy Calibration.” Physical Review Letters 105.25 (2010) : n. pag. © 2010 The American Physical Society
Version
Final published version
Abstract
A precision measurement of the top quark mass mt [m subscript t] is obtained using a sample of tt̅ events from pp̅ 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[m subscript t] and a parameter ΔJES [delta subscript JES] used to calibrate the jet energy scale in situ. Using a total of 1087 events in 5.6 fb-1 [fb superscript -1] of integrated luminosity, a value of mt=173.0±1.2 GeV/c2 [m subscript t =173.0±1.2 GeV/c superscript 2] is measured.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.105.252001
