Eur. Phys. J. C 23, 471-477 (2002)
https://doi.org/10.1007/s100520200890

Top quark pair production and decay into six fermions at linear colliders

Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40007 Katowice, Poland

Corresponding author: ^a kolodzie@us.edu.pl

Received: 4 October 2001
Revised: 10 December 2001
Published online: 22 February 2002

Abstract

The production of a tt pair and its decay into a six fermion final state of different flavors in e⁺e^- annihilation at center of mass energies typical for linear colliders is analyzed in the framework of the standard model. The results of a calculation based on exact matrix elements at the tree level and full six particle phase space are compared with a few different approximations. It is shown that the effects related to off-shellness of the pair and background contributions are sizable both in the continuum and at the threshold.