1999/06/15 by Guang-jiong Ni, Guo-Hong Yang, Ni, Guang-jiong +7
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Quantum, superfluid, helium dynamics #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9906364
Latex, 19 pages, 3 figures
arxiv created 1999/06/15 · openalex publication_date 1999/06/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Based on a simple but effective regularization-renormalization method (RRM), the running coupling constants (RCC) of fermions with masses in quantum electrodynamics (QED) and quantum chromodynamics (QCD) are calculated by renormalization group equation (RGE). Starting at Q=0 (Q being the momentum transfer), the RCC in QED increases with the increase of Q whereas the RCCs for different flavors of quarks with masses in QCD are different and they increase with the decrease of Q to reach a maximum at low Q for each flavor of quark and then decreases to zero at Q\longrightarrow 0. The physical explanation is given.