Heavy-quarkonium creation and annihilation with O(alpha(3)(s)ln(alpha(s)) accuracy.
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.
Kniehl
Bernd A
BA
II Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany.
Penin
Alexander A
AA
Smirnov
Vladimir A
VA
Steinhauser
Matthias
M