We present measurements of the top quark mass using m(T2), a variable related to the transverse mass in events with two missing particles. We use the template method applied to t (t) over bar dilepton events produced in p (p) over bar 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 t (t) over bar candidate events. Using the m(T2) distribution, we measure the top quark mass to be M-top = (168.0(-4.0)(4.8)(stat) +/- 2.9(syst)) GeV/c(2). By combining m(T2) with the reconstructed top quark mass distributions based on a neutrino weighting method, we measure M-top = (169.3 +/- 2.7(stat) +/- 3.2(syst) GeV/c(2)). This is the first application of the m(T2) variable in a mass measurement at a hadron collider.

T., A., J., A., B. A., G., S., A., D., A., A., A., et al. (2010). Measurement of the top quark mass in the dilepton channel using m(T2) at CDF. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 81(3), 031102-1-031102-9 [10.1103/PhysRevD.81.031102].

Measurement of the top quark mass in the dilepton channel using m(T2) at CDF

CIOCCI, MARIA AGNESE;
2010-01-01

Abstract

We present measurements of the top quark mass using m(T2), a variable related to the transverse mass in events with two missing particles. We use the template method applied to t (t) over bar dilepton events produced in p (p) over bar 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 t (t) over bar candidate events. Using the m(T2) distribution, we measure the top quark mass to be M-top = (168.0(-4.0)(4.8)(stat) +/- 2.9(syst)) GeV/c(2). By combining m(T2) with the reconstructed top quark mass distributions based on a neutrino weighting method, we measure M-top = (169.3 +/- 2.7(stat) +/- 3.2(syst) GeV/c(2)). This is the first application of the m(T2) variable in a mass measurement at a hadron collider.
2010
T., A., J., A., B. A., G., S., A., D., A., A., A., et al. (2010). Measurement of the top quark mass in the dilepton channel using m(T2) at CDF. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 81(3), 031102-1-031102-9 [10.1103/PhysRevD.81.031102].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/35814
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