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Scientific article
Open access
English

Measurement of the mass difference between top and antitop quarks

ContributorsCDF Collaboration
Publication date2013
Abstract

We present a measurement of the mass difference between top (t) and antitop (t) quarks using tt candidate events reconstructed in the final state with one lepton and multiple jets. We use the full data set of Tevatron s√=1.96  TeV proton-antiproton collisions recorded by the CDF II detector, corresponding to an integrated luminosity of 8.7  fb−1. We estimate event by event the mass difference to construct templates for top pair signal events and background events. The resulting mass difference distribution in data compared to signal and background templates using a likelihood fit yields ΔMtop=Mt−Mt=−1.95±1.11(stat)±0.59(syst)  GeV/c2 and is in agreement with the standard model prediction of no mass difference.

Citation (ISO format)
CDF Collaboration. Measurement of the mass difference between top and antitop quarks. In: Physical review. D. Particles, fields, gravitation, and cosmology, 2013, vol. 87, n° 05, p. 052013. doi: 10.1103/PhysRevD.87.052013
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Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal1550-2368
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137downloads

Technical informations

Creation07/22/2014 11:04:00 AM
First validation07/22/2014 11:04:00 AM
Update time03/14/2023 9:27:46 PM
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