Determination of the high-twist contribution to the structure function $x{F}_3^{\nu N}$

Abstract

We extract the high-twist contribution to the neutrino-nucleon structure function $x{F}_3^{(\nu +\bar{\nu })N}$ from the analysis of the data collected by the IHEP-JINR Neutrino Detector in the runs with the focused neutrino beams at the IHEP 70 GeV proton synchrotron. The analysis is performed within the infrared renormalon (IRR) model of high twists in order to extract the normalization parameter of the model. From the NLO QCD fit to our data we obtained the value of the IRR model normalization parameter ${\Lambda }_3^2=0.69\pm 0.37(\exp )\pm 0.16(\mathrm{theor}){\mathrm{GeV}}^2$. We also obtained ${\Lambda }_3^2=0.36\pm 0.22(\exp )\pm 0.12(\mathrm{theor}){\mathrm{GeV}}^2$ from a similar fit to the CCFR data. The average of both results is ${\Lambda }_3^2=0.44\pm 0.19(\exp ){\mathrm{GeV}}^2$.

preprint IHEP-01-18, 7 pages, LATEX, 1 figure (EPS)

References in corpus (1)

• Determination of the QCD Coupling ${\alpha }_s$

Cited by in corpus (4)

• Nuclear shadowing in neutrino-nucleus deeply inelastic scattering
• The constraints on the non-singlet polarised parton densities from the infrared-renormalon model
• Modeling power corrections to the Bjorken sum rule for the neutrino structure function F_1
• On the Relation Between x-dependence of the Higher Twist Contribution to F_3 and g_1^p - g_1^n