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English

Measurement of the top quark mass in the dilepton channel using mT2 at CDF

Contributors

CDF Collaboration

Collaborators

Clark, Allan Geoffrey; Garcia Navarro, Jose Enrique; Lister, Alison; Wu, Xin

Published in

Physical review. D. Particles, fields, gravitation, and cosmology, vol. 81, no. 03, 031102

Publication date

2010

Abstract

We present measurements of the top quark mass using mT2, a variable related to the transverse mass in events with two missing particles. We use the template method applied to tt dilepton events produced in pp 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−1, we select 236 tt candidate events. Using the mT2 distribution, we measure the top quark mass to be Mtop=168.0+4.8−4.0(stat)±2.9(syst)  GeV/c2. By combining mT2 with the reconstructed top quark mass distributions based on a neutrino weighting method, we measure Mtop=169.3±2.7(stat)±3.2(syst)  GeV/c2. This is the first application of the mT2 variable in a mass measurement at a hadron collider.

UNIGE affiliation entities

Citation (ISO format)

CDF Collaboration. Measurement of the top quark mass in the dilepton channel using mT2 at CDF. In: Physical review. D. Particles, fields, gravitation, and cosmology, 2010, vol. 81, n° 03, p. 031102. doi: 10.1103/PhysRevD.81.031102

Main files (1)

Article (Published version)

Identifiers

Additional URL for this publication

http://journals.aps.org/prd/abstract/10.1103/PhysRevD.81.031102

Journal ISSN

1550-2368
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238downloads

Technical informations

Creation

14/07/2014 16:28:00

First validation

14/07/2014 16:28:00

Update

13/10/2025 22:32:51

Status update

14/03/2023 21:26:42

Last indexation

10/11/2026 17:00:57
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