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Measurement of the top-quark mass in the $t\bar{t}$ dilepton channel using the full CDF Run II data set


Aaltonen, T A; Amerio, S; Amidei, D E; et al; Canelli, F; Kilminster, B; Galloni, G; CDF Collaboration (2015). Measurement of the top-quark mass in the $t\bar{t}$ dilepton channel using the full CDF Run II data set. Physical Review D (Particles, Fields, Gravitation and Cosmology), 92:032003.

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 $\sqrt{s} = 1.96$ 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 ${t\bar{t}}$ dilepton signal and background. We measure a value for the top-quark mass of $171.5\pm 1.9~{\rm(stat)}\pm 2.5~{\rm (syst)}$ GeV/$c^2$.

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 $\sqrt{s} = 1.96$ 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 ${t\bar{t}}$ dilepton signal and background. We measure a value for the top-quark mass of $171.5\pm 1.9~{\rm(stat)}\pm 2.5~{\rm (syst)}$ GeV/$c^2$.

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1 citation in Web of Science®
5 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:3 May 2015
Deposited On:12 Feb 2016 16:01
Last Modified:05 Apr 2016 20:03
Publisher:American Physical Society
ISSN:1550-2368
Publisher DOI:https://doi.org/10.1103/PhysRevD.92.032003
Other Identification Number:arXiv:1505.00500v2

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