Recent Developments in Perturbative QCD: Q^2 Evolution of Chiral-Odd Distributions h_1(x,Q^2) and h_L(x,Q^2)
High Energy Physics - Phenomenology
2009-09-25 v2
Abstract
After reviewing QCD definitions of the chiral-odd spin-dependent parton distributions and h_L(x,Q^2), I will summarize the main feature of the recent two results in perturbative QCD: (i) Next-to-leading order evolution of h_1(x,Q^2). (ii) Leading order Q^2 evolution of the twist-3 distribution h_L(x,Q^2) and the universal simplification of the Q^2 evolution of all the twist-3 distributions in the large N_c limit.
Keywords
Cite
@article{arxiv.hep-ph/9801231,
title = {Recent Developments in Perturbative QCD: Q^2 Evolution of Chiral-Odd Distributions h_1(x,Q^2) and h_L(x,Q^2)},
author = {Yuji Koike},
journal= {arXiv preprint arXiv:hep-ph/9801231},
year = {2009}
}
Comments
17 pages in Latex. figures are included as eps files. Invited talk presented at ``QCD Corrections and the New Physics'', October 27-29, 1997, Hiroshima, Japan. To be published in the proceedings. (ed. by J. Kodaira et al.) Figures are properly included by epsbox.sty