Speaker
Stefan Soldner-Rembold
(University of Manchester)
Description
We present a measurement of the difference between the masses
of the top and antitop quarks in the lepton+jets final state.
The analysis is based on the "matrix element" method. The purity
of the data sample is enhanced by applying a neural-net-based
b-tagging technique. The data for this measurement corresponds
to 1 fb-1 of integrated luminosity acquired by the D0 experiment
at the Fermilab Tevatron Collider. This represents the first
direct measurement of a mass difference between a quark and its
antiquark and represents a test of CPT invariance.
Primary authors
Aurelio Juste
(Fermilab)
Stefan Soldner-Rembold
(University of Manchester)
