Aaltonen, T;
Abulencia, A;
Adelman, J;
Affolder, T;
Akimoto, T;
Albrow, MG;
Amerio, S;
... Zucchelli, S; + view all
(2007)
Precise measurement of the top-quark mass in the Lepton plus Jets topology at CDF II.
Physical Review Letters
, 99
(18)
, Article 182002. 10.1103/PhysRevLett.99.182002.
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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 (t (t) over bar -> W(+)bW(-)(b) over bar -> l nu bq (q) over bar (')(b) over bar). The top-quark mass is extracted using a direct calculation of the probability density that each event corresponds to the t (t) over bar 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/c(2).
| Type: | Article |
|---|---|
| Title: | Precise measurement of the top-quark mass in the Lepton plus Jets topology at CDF II |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.99.182002 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.99.182002 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | LIKELIHOOD METHOD, MISSING MOMENTUM, PAIR PRODUCTION, EVENTS, RECONSTRUCTION, DECAY, BOSON |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/131678 |
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