Parton Distributions, d/u, and Higher Twist Effects at High X
High Energy Physics - Phenomenology
2011-02-01 v4 High Energy Physics - Experiment
Abstract
A re-analysis of the NMC and SLAC data leads to a great improvement in our knowledge of the valence d and u parton distribution functions at high x. Standard parton distributions with our modifications are in good agreement with QCD predictions for d/u at x=1, and with the CDHSW nu p and nubar p data, the HERA charged current cross section data, the collider high-P_t jet data, and the CDF W asymmetry data. With the inclusion of target mass and higher twist corrections, the modified PDF's also describe all DIS data up to x = 0.98 and down to Q^2 = 1 GeV^2.
Keywords
Cite
@article{arxiv.hep-ph/9809480,
title = {Parton Distributions, d/u, and Higher Twist Effects at High X},
author = {U. K. Yang and A. Bodek},
journal= {arXiv preprint arXiv:hep-ph/9809480},
year = {2011}
}
Comments
4pages, 7 figures, Talk given at 29th International Conference on High-energy Physics, Vancouver, Canada, July 1998. Submitted to Phys. Rev. Lett