Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-02-14
Phys.Rev. D56 (1997) 1515-1521
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages LaTeX. Uses amssymb.sty. Minor changes to text
Scientific paper
10.1103/PhysRevD.56.1515
General model-independent expressions are developed for the polarized and unpolarized cross-sections for $e^+e^-\to f\bar f$ near the $Z^0$ resonance. The expressions assume only the analyticity of S-matrix elements. Angular dependence is included by means of a partial wave expansion. The resulting simple forms are suitable for use in fitting data or in Monte Carlo event generators. A distinction is made between model-independent and model-dependent QED corrections and a simple closed expression is given for the effect of initial-final state bremsstrahlung and virtual QED corrections.
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