Electroweak one loop corrections for e+ e- annihilation into t anti-top including hard bremsstrahlung
Feb, 200334 pages
Published in:
- Eur.Phys.J.C 31 (2003) 37-56
e-Print:
- hep-ph/0302259 [hep-ph]
Report number:
- DESY-02-204,
- BI-TP-2002-29,
- CERN-TH-2003-023,
- LMU-12-02,
- SFB-CPP-03-02
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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.Note:
- 34 pages
- electron positron: annihilation
- top: pair production
- top
- Feynman graph: higher-order
- bremsstrahlung
- form factor
- kinematics
- phase space
- differential cross section: angular dependence
- differential cross section: energy dependence
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