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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.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: 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) Volume 109, Issue 15, article number 152003

Editorial: American Physical Society

 Fecha de publicación: 01/10/2012

Nº de páginas: 8

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.109.152003

ISSN: 0031-9007,1079-7114

Url de la publicación: https://doi.org/10.1103/PhysRevLett.109.152003

Autores/as

AALTONEN, T.

BARBARA ALVAREZ GONZALEZ

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON