Determination of the Strange Quark Content of the Nucleon from a Next-to-Leading-Order QCD Analysis of Neutrino Charm Production

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dc.creatorBazarko, A. O.
dc.date1994-06-29
dc.date.accessioned2026-07-07T11:46:39Z
dc.date.available2026-07-07T11:46:39Z
dc.descriptionWe present the first next-to-leading-order QCD analysis of neutrino charm production, using a sample of 6090 $ν_μ$- and $\barν_μ$-induced opposite-sign dimuon events observed in the CCFR detector at the Fermilab Tevatron. We find that the nucleon strange quark content is suppressed with respect to the non-strange sea quarks by a factor $κ= 0.477 \: ^{+\:0.063}_{-\:0.053}$, where the error includes statistical, systematic and QCD scale uncertainties. In contrast to previous leading order analyses, we find that the strange sea $x$-dependence is similar to that of the non-strange sea, and that the measured charm quark mass, $m_c = 1.70 \pm 0.19 \:{\rm GeV/c}^2$, is larger and consistent with that determined in other processes. Further analysis finds that the difference in $x$-distributions between $xs(x)$ and $x\bar s(x)$ is small. A measurement of the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cd}|=0.232 ^{+\:0.018}_{-\:0.020}$ is also presented. uufile containing compressed postscript files of five Figures is appended at the end of the LaTeX source.
dc.descriptionNevis R#1502
dc.identifierhttps://arxiv.org/abs/hep-ex/9406007
dc.identifierhttp://arxiv.org/abs/hep-ex/9406007
dc.identifierZ.Phys.C65:189-198,1995
dc.identifierdoi:10.1007/BF01571875
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202300
dc.subjectHigh Energy Physics - Experiment
dc.titleDetermination of the Strange Quark Content of the Nucleon from a Next-to-Leading-Order QCD Analysis of Neutrino Charm Production
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