Model-independent Representation of Electroweak Data

Abstract

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.

14 pages LaTeX. Uses amssymb.sty. Minor changes to text

References in corpus (4)

• Analytic approach to the complete set of QED corrections to fermion pair production in e+e- annihilation
• S-Matrix Approach to the $Z$ Line Shape
• Cross-Section Asymmetries Around the $Z$ Peak
• SMATASY - A program for the model independent description of the Z resonance

Cited by in corpus (4)

• Relativistic resonances: Their masses, widths, lifetimes, superposition, and causal evolution
• On the Mass and Width of the Z-boson and Other Relativistic Quasistable Particles
• Precision Physics at LEP
• Semigroup Representations of the Poincare Group and Relativistic Gamow Vectors