Strange Sea and alpha-s Measurements from nu-N Deep Inelastic Scattering at CCFR/NuTeV
The CCFR/NuTeV Collaboration, J. Yu et. al
TL;DR
This paper reports a precise measurement of the strong coupling constant alpha-s at the Z boson mass scale using deep inelastic scattering data, and discusses strange sea quark measurements and future improvements.
Contribution
It provides a next-to-next-leading order determination of alpha-s from the Gross-Llewellyn-Smith sum rule and reviews strange sea quark measurements from CCFR and NuTeV.
Findings
Alpha-s(M_Z^2) = 0.114^{+0.009}_{-0.012} at NNLO
Discussion of previous strange sea measurements
Prospects for improved measurements in NuTeV
Abstract
We present the latest Next-to-Next-Leading order strong coupling constant, alpha-s, extracted from Gross-Llewellyn-Smith sum rule. The value of alpha-s from this measurement, at the mass of Z boson, is alpha-s^{NNLO}(M_Z**2)=0.114^{+0.009}_{-0.012}. We discuss the previous strange sea quark measurement from the CCFR experiment and the prospects for improvements of the measurement in the NuTeV experiment.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research