Top quark mass measurement using the template method at CDF

Author(s)
Bauer, Gerry P.; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Makhoul, K.; Paus, Christoph M. E.
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Abstract
We present a measurement of the top quark mass in the lepton+jets and dilepton channels of tt[over-bar] decays using the data sample corresponding to an integrated luminosity of 5.6  fb[superscript -1] of pp[over-bar] collisions at Tevatron with [sqrt]s=1.96  TeV, collected with the CDF II detector. We construct templates of two reconstructed top quark masses from different jets-to-quarks combinations and the invariant mass of two jets from the W decays in the lepton+jets channel, and a reconstructed top quark mass and mT2, a variable related to the transverse mass in events with two missing particles, in the dilepton channel. The simultaneous fit of the templates from signal and background events in the lepton+jets and dilepton channels to the data yields a measured top quark mass of M[subscript top]=172.1±1.1(stat)±0.9(syst)  GeV/c[superscript 2].
Date issued
2011-06
URI
http://hdl.handle.net/1721.1/67502
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
T. Aaltonen et al. (CDF Collaboration). "Top quark mass measurement using the template method at CDF." Phys. Rev. D 83, 111101(R) (2011) [9 pages]. © 2011 American Physical Society.
Version: Final published version
ISSN
1550-7998
1550-2368
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