Precision Top-Quark Mass Measurement at CDF
Name
Aaltonen-2012-Precision Top-Quark Mass Measurement at CDF.pdf
Size
7.4 MB
Format
Adobe PDF
Checksum (MD5)
cb68655a1341181ff3f2d875c99aa6d9
Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Paus, Christoph M. E.
Date Issued
October 2012
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Precision Top-Quark Mass Measurement at CDF.” Physical Review Letters 109.15 (2012). © 2012 American Physical Society
Version
Final published version
Abstract
We present a precision measurement of the top-quark mass using the full sample of Tevatron √s=1.96 TeV proton-antiproton collisions collected by the CDF II detector, corresponding to an integrated luminosity of 8.7 fb[superscript -1]. Using a sample of tt̅ candidate events decaying into the lepton+jets channel, we obtain distributions of the top-quark masses and the invariant mass of two jets from the W boson decays from data. We then compare these distributions to templates derived from signal and background samples to extract the top-quark mass and the energy scale of the calorimeter jets with in situ calibration. The likelihood fit of the templates from signal and background events to the data yields the single most-precise measurement of the top-quark mass, M[subscript top]=172.85±0.71(stat)±0.85(syst) GeV/c[superscript 2].
MIT Department
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.109.152003
