Updated SM calculations of sigma_W/sigma_Z at the Tevatron and the W boson width
Peter Renton
TL;DR
This paper updates the theoretical predictions for the W/Z cross section ratio and W boson width at the Tevatron using NNLO calculations, latest PDFs, and electroweak theory, refining previous estimates.
Contribution
It provides the most recent NNLO-based calculations of sigma_W/sigma_Z and W boson widths incorporating updated PDFs and electroweak corrections.
Findings
Updated sigma_W/sigma_Z ratio with reduced uncertainties
Refined W boson partial and total widths
Improved theoretical inputs for Tevatron analyses
Abstract
The central value and theoretical uncertainties on the cross section ratio sigma_W/sigma_Z at the Tevatron are evaluated using the NNLO calculations and the latest MSTW PDFs. The partial width, total width and branching ratios of the W boson in the Standard Model, in the light of the latest electroweak calculations, are also updated.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research