New measurement of the top mass from the Tevatron

by Tom Ferbel (University of Rochester and Imperial College)

Tuesday 19 Nov 2002, 16:30 → 17:30 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

An approach is being developed in D-Zero for extracting information from data through a direct comparison of all measured variables in an event with a matrix element that describes the entire production process. The method is exemplified in the extraction of the mass of the top quark in top-antitop events in the lepton+jets final state. Monte Carlo studies suggest that an improvement of almost a factor of two in statistical uncertainty on the mass of the top quark can be achieved relative to previously published work for this channel. Preliminary results from the re-analysis provide a reduction in the statistical uncertainty of almost a factor of 1.6, corresponding to an effective factor of 2.4 increase in the size of the data sample.

Organiser(s): Jasper Kirkby / EP Division

Note: Tea & coffee will be served at 16.00 hrs.