https://doi.org/10.1140/epjc/s2003-01263-8
theoretical physics
Electroweak one-loop corrections for e + e - annihilation into $t\bar{t}$ including hard bremsstrahlung
1
Fakultät für Physik, Universität Bielefeld, Universitätsstr. 25, 33615, Bielefeld, Germany
2
Sektion Physik, Universität München, Theresienstr. 37, 80333, München, Germany
3
DESY Zeuthen, Deutsches Elektronen-Synchrotron, Platanenallee 6, 15738, Zeuthen, Germany
4
Theory Division, CERN, 1211, Geneva 23, Switzerland,
* e-mail: fleischer@physik.uni-bielefeld.de
We present the complete electroweak one-loop corrections to top-pair production at a linear e + e - collider in the continuum region. Besides weak and photonic virtual corrections, real hard bremsstrahlung with simple realistic kinematical cuts is included. For the bremsstrahlung we advocate a semi-analytical approach with a high numerical accuracy. The virtual corrections are parameterized through six independent form factors, suitable for Monte Carlo implementation. Alternatively, our numerical package Topfit, a stand-alone code, can be utilized for the calculation of both differential and integrated cross sections as well as forward-backward asymmetries.
© Springer-Verlag, 2003
