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Measurement of the top-quark mass in the tt ̄ dilepton channel using the full CDF Run II data set

Aaltonen, T.
•
Amerio, S.
•
Amidei, D.
altro
SANTI, Lorenzo Gianni
2015
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
We present a measurement of the top-quark mass in events containing two leptons (electrons or muons) with a large transverse momentum, two or more energetic jets, and a transverse-momentum imbalance. We use the full proton-antiproton collision data set collected by the CDF experiment during the Fermilab Tevatron Run II at center-of-mass energy root s = 1.96 TeV, corresponding to an integrated luminosity of 9.1 fb(-1). A special observable is exploited for an optimal reduction of the dominant systematic uncertainty, associated with the knowledge of the absolute energy of the hadronic jets. The distribution of this observable in the selected events is compared to simulated distributions of t (t) over bar dilepton signal and background. We measure a value for the top-quark mass of 171.5 +/- 1.9 (stat) +/- 2.5 (syst) GeV/c(2).
DOI
10.1103/PhysRevD.92.032003
WOS
WOS:000359050900001
Archivio
http://hdl.handle.net/11390/1084174
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84940549695
http://harvest.aps.org/bagit/articles/10.1103/PhysRevD.92.032003/apsxml
Diritti
metadata only access
Soggetti
  • Nuclear and High Ener...

Scopus© citazioni
10
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
5
Data di acquisizione
Mar 28, 2024
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