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Precision top-quark mass measurement at CDF

Abstract: We present a precision measurement of the top-quark mass using the full sample of Tevatron ffiffis p ¼ 1:96 TeV proton-antiproton collisions collected by the CDF II detector, corresponding to an integrated luminosity of 8:7 fb1. Using a sample of tt candidate events decaying into the lepton þ 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, Mtop ¼ 172:85 0:71ðstatÞ 0:85ðsystÞ GeV=c2.

Other publications of the same journal or congress with authors from the University of Cantabria

Authorship: Aaltonen T., Lvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Bae T., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bedeschi F., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Bisello D., Bizjak I., Bland K.R., Blu

Fuente: Physical Review Letters, 2012, 109(15), 152003

Publisher: American Physical Society

Publication date: 01/10/2012

No. of pages: 8

Publication type: Article

DOI: 10.1103/PhysRevLett.109.152003

ISSN: 0031-9007,1079-7114

Publication Url: https://doi.org/10.1103/PhysRevLett.109.152003

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