Cross-Section Asymmetries Around the Z Peak
Tord Riemann
Abstract
A simple model-independent formula for cross-section asymmetries A in fermion-pair production is derived, which may be used for the analysis of LEP~1 data, A = Σn An (s - MZ2)n. The coefficient A0 depends on the Z boson exchange, A1 additionally on the γZ interference, while the higher-order contributions are practically redundant. QED corrections are taken into account, and relations to other approaches are indicated.
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