Lancaster, M;
Nurse, E;
Waters, DCDFC;
(2007)
Precision measurement of the top-quark mass from dilepton events at CDF II.
Physical Review D
, 75
, Article 031105. 10.1103/PhysRevD.75.031105.
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Abstract
We report a measurement of the top-quark mass, Mt, in the dilepton decay channel of tt̅ →bℓ′+νℓ′b̅ ℓ-ν̅ ℓ using an integrated luminosity of 1.0 fb-1 of pp̅ collisions collected with the CDF II detector. We apply a method that convolutes a leading-order matrix element with detector resolution functions to form event-by-event likelihoods; we have enhanced the leading-order description to describe the effects of initial-state radiation. The joint likelihood is the product of the likelihoods from 78 candidate events in this sample, which yields a measurement of Mt=164.5±3.9(stat.)±3.9(syst.) GeV/c2, the most precise measurement of Mt in the dilepton channel.
| Type: | Article |
|---|---|
| Title: | Precision measurement of the top-quark mass from dilepton events at CDF II |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.75.031105 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevD.75.031105 |
| 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. |
| 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/131822 |
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