Heavy-quarkonium creation and annihilation with O(alpha_s^3 ln(alpha_s)) accuracy

Details Heavy-quarkonium creation and annihilation with O(alpha_s^3 ln(alpha_s)) accuracy Heavy-quarkonium creation and annihilation with O(alpha_s^3 ln(alpha_s)) accuracy

2002-10-10

arxiv.org/abs/hep-ph/0210161v4

Phys.Rev.Lett. 90 (2003) 212001

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages (Latex). Eq. (6) corrected, conclusions unchanged

Scientific paper

10.1103/PhysRevLett.90.212001

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.

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