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English

Precise Measurement of the Top-Quark Mass in the Lepton + Jets Topology at CDF II

Contributors

CDF Collaboration

Collaborators

Campanelli, Mario; Clark, Allan Geoffrey; Hamilton, Andrew; Lefevre, Régis; Moed, Shulamit; Sfyrla, Anna; Shreyber, Irina; Vallecorsa, Sofia; Wu, Xin

Published in

Physical review letters, vol. 99, no. 18, 182002

Publication date

2007

Abstract

We present a measurement of the mass of the top quark from proton-antiproton collisions recorded at the CDF experiment in Run II of the Fermilab Tevatron. We analyze events from the single lepton plus jets final state (tt→W+bW−b→lνbqq′b). The top-quark mass is extracted using a direct calculation of the probability density that each event corresponds to the tt final state. The probability is a function of both the mass of the top quark and the energy scale of the calorimeter jets, which is constrained in situ by the hadronic W boson mass. Using 167 events observed in 955  pb−1 of integrated luminosity, we achieve the single most precise measurement of the top-quark mass, 170.8±2.2(stat.)±1.4(syst.)  GeV/c2.

UNIGE affiliation entities

Citation (ISO format)

CDF Collaboration. Precise Measurement of the Top-Quark Mass in the Lepton + Jets Topology at CDF II. In: Physical review letters, 2007, vol. 99, n° 18, p. 182002. doi: 10.1103/PhysRevLett.99.182002

Main files (1)

Article (Published version)

Identifiers

Additional URL for this publication

http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.99.182002

Journal ISSN

0031-9007
548views
174downloads

Technical informations

Creation

01/07/2014 16:26:00

First validation

01/07/2014 16:26:00

Update

13/10/2025 22:34:08

Status update

14/03/2023 21:25:26

Last indexation

10/11/2026 16:58:10
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