Eur. Phys. J. C (2005) 39: 63-90
https://doi.org/10.1140/epjcd/s2004-02-004-8

Scientific Note

Investigation of top mass measurements with the ATLAS detector at LHC

¹ Institute of Physics, P.O. Box 68, 11081 Belgrade, Yugoslavia
² CERN, Experimental Physics Division, 1211 Geneva 23, Switzerland
³ IFIC-Departamento de Fisica Atomica, Molecular y Nuclear, Avenida Dr. Moliner 50, 46100 Burjassot (Valencia), Spain
⁴ LPC Clermont-Ferrand, Universite Blaise Pascal, CNRS/IN2P3, 63177 Aubière, France
⁵ Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, Prague, Czech Republic
⁶ IHEP, PO Box 35, Pobeda street 1, 142284 Protvino, Moscow Region, Russia
⁷ Faculty of Mathematics and Physics of the Charles University, Prague, Czech Republic
⁸ Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
⁹ Faculty of Physics, University of Belgrade, P.O. Box 368, 11001 Belgrade, Yugoslavia

Received: 15 March 2004
Accepted: 9 December 2004
Published online: 23 February 2005

Abstract

Several methods for the determination of the mass of the top quark with the ATLAS detector at the LHC are presented. All dominant decay channels of the top quark can be explored. The measurements are in most cases dominated by systematic uncertainties. New methods have been developed to control those related to the detector. The results indicate that a total error on the top mass at the level of 1 GeV should be achievable.