Precision Calculation Project Report
Dmitri Bardin (1), Martin Grunewald (2), Giampiero Passarino (3) ((1), Laboratory of Nuclear Problems, JINR, Dubna, Russia; (2) Institute of, Physics, Humboldt University, Berlin, Germany; (3) Dipartimento di Fisica, Teorica, Universita di Torino, Italy, and INFN
TL;DR
This report reviews the conventions, definitions, and precision calculations used in analyzing Z-resonance results at LEP-1, comparing two key programs and discussing their relevance for both pseudo-observables and realistic observables.
Contribution
It provides a comprehensive overview of the definitions, conventions, and comparison of precision calculation programs TOPAZ0 and ZFITTER for LEP-1 Z-resonance analysis.
Findings
Comparison between TOPAZ0 and ZFITTER shows good agreement.
Highlights the importance of precision calculations for electroweak measurements.
Discusses model-independent approaches in the analysis.
Abstract
The complete list of definitions for quantities relevant in the analysis of SLD/LEP-1 results around the Z-resonance is given. The common set of conventions adopted by the programs TOPAZ0 and ZFITTER, following the recommendations of the LEP electroweak working group, is reviewed. The relevance of precision calculations is discussed in detail both for pseudo-observables (PO) and for realistic observables (RO). The model-independent approach is also discussed. A critical assessment is given of the comparison between TOPAZ0 and ZFITTER.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Neutrino Physics Research · Atomic and Subatomic Physics Research