Heavy-quarkonium creation and annihilation with O(alpha_s^3 ln(alpha_s)) accuracy
High Energy Physics - Phenomenology
2009-11-07 v4
Abstract
We calculate the O(alpha_s^3 ln(alpha_s)) contributions to the heavy-quarkonium production and annihilation rates. Our result sheds new light on the structure of the high-order perturbative corrections and opens a new perspective for a high-precision theoretical analysis. We also determine the three-loop anomalous dimensions of the nonrelativistic vector and pseudoscalar currents.
Cite
@article{arxiv.hep-ph/0210161,
title = {Heavy-quarkonium creation and annihilation with O(alpha_s^3 ln(alpha_s)) accuracy},
author = {Bernd A. Kniehl and Alexander A. Penin and Vladimir A. Smirnov and Matthias Steinhauser},
journal= {arXiv preprint arXiv:hep-ph/0210161},
year = {2009}
}
Comments
10 pages (Latex). Eq. (6) corrected, conclusions unchanged