Aaltonen, T., Bussey, P., Robson, A. and St Denis, R. (2010) Measurement of the top quark mass in the dilepton channel using mT2} at CDF. Physical Review D, 81(3), (doi: 10.1103/PhysRevD.81.031102)
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Publisher's URL: http://link.aps.org/doi/10.1103/PhysRevD.81.031102
Abstract
We present measurements of the top quark mass using m<sub>T2</sub>, a variable related to the transverse mass in events with two missing particles. We use the template method applied to tt̅ dilepton events produced in pp̅ collisions at Fermilab’s Tevatron Collider and collected by the CDF detector. From a data sample corresponding to an integrated luminosity of 3.4 fb<sup>-1</sup>, we select 236 tt̅ candidate events. Using the m<sub>T2</sub> distribution, we measure the top quark mass to be Mtop=168.0-4.0+4.8(stat)±2.9(syst) GeV/c<sup>2</sup>. By combining m<sub>T2</sub> with the reconstructed top quark mass distributions based on a neutrino weighting method, we measure M<sub>top</sub>=169.3±2.7(stat)±3.2(syst) GeV/c<sup>2</sup>. This is the first application of the m<sub>T2</sub> variable in a mass measurement at a hadron collider
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Robson, Professor Aidan and St Denis, Dr Richard and Bussey, Dr Peter |
| Authors: | Aaltonen, T., Bussey, P., Robson, A., and St Denis, R. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review D |
| Publisher: | American Physical Society |
| ISSN: | 1550-7998 |
| ISSN (Online): | 1089-4918 |
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