1994/06/11 by Yu-Qi Chen, Yu-Ping Kuang, R. J. Oakes +1 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.52.264
published as Phys.Rev.D52:264-270,1995 · 12 pages, REVTEX; NSF-ITP-94-49, TUIMP-TH-94/59, NUHEP-TH-94-10
arxiv created 1994/06/11 · openalex publication_date 1995/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A new formula for the heavy-quark--antiquark spin-dependent potential is given by using the techniques developed in heavy-quark effective theory. The leading logarithmic quark mass terms emerging from the loop contributions are explicitly extracted and summed up. There is no renormalization scale ambiguity in this new formula. The spin-dependent potential in the new formula is expressed in terms of three independent color-electric and color-magnetic field correlation functions, and it includes both the Eichten-Feinberg formula and the one-loop QCD result as special cases.