Heavy-quarkonium creation and annihilation with O(alpha(3)(s)ln(alpha(s)) accuracy

Phys Rev Lett. 2003 May 30;90(21):212001. doi: 10.1103/PhysRevLett.90.212001. Epub 2003 May 27.

Abstract

We calculate the O(alpha(3)(s)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.