CERN Accelerating science

Article
Report number	hep-ph/0302259 ; CERN-TH-2003-023 ; BI-TP-2002-29 ; DESY-02-204 ; DESY-2002-204 ; LMU-2002-12 ; SFB-CPP-2003-02
Title	Elektroweak one-loop corrections for $e^{+}e^{-}$ annihilation into $t\bar{t}$ including hard bremsstrahlung
Author(s)	Fleischer, J ; Leike, A ; Riemann, Tord ; Werthenbach, A
Affiliation	(Univ. Bielefeld) ; (Univ. München) ; (DESY Zeuthen) ; (CERN)
Publication	2003
Imprint	27 Feb 2003
Number of pages	34
In:	Eur. Phys. J. C 31 (2003) 37-56
DOI	10.1140/epjc/s2003-01263-8
Subject category	Particle Physics - Phenomenology
Abstract	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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