Elektroweak one-loop corrections for e^+e^- annihilation into t\bar{t} including hard bremsstrahlung

Details Elektroweak one-loop corrections for e^+e^- annihilation into t\bar{t} including hard bremsstrahlung Elektroweak one-loop corrections for e^+e^- annihilation into t\bar{t} including hard bremsstrahlung

2003-02-27

arxiv.org/abs/hep-ph/0302259v1

Eur.Phys.J. C31 (2003) 37-56

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pages

Scientific paper

10.1140/epjc/s2003-01263-8

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 parametrized 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.

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