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Top quark mass measurement using the template method at CDF

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
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We present a measurement of the top quark mass in the lepton+jets and dilepton channels of t$$\bar{t}$$ decays using the template method. The data sample corresponds to an integrated luminosity of 5.6 fb-1 of p$$\bar{p}$$ collisions at Tevatron with √s = 1.96 TeV, collected with the CDF II detector. The measurement is performed by constructing templates of three kinematic variables in the lepton+jets and two kinematic variables in the dilepton channel. The variables are two reconstructed top quark masses from different jets-to-quarks combinations and the invariant mass of two jets from the W decay 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 Mtop = 172.1±1.1 (stat)±0.9 (syst) GeV/c2.
Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC)
Contributing Organization:
CDF Collaboration
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1016224
Alternate ID(s):
OSTI ID: 1099521
Report Number(s):
FERMILAB-PUB--11-205-E-PPD; arXiv eprint number arXiv:1105.0192
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 11 Vol. 83; ISSN 1550-7998
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Precision measurements of the top quark mass from the Tevatron in the pre-LHC era journal April 2012
Combination of the top-quark mass measurements from the Tevatron collider journal November 2012
Top quark physics at the Tevatron using t t ¯ events journal March 2012

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