2003/03/31 by Deog Ki Hong, Taekoon Lee, Dong-Pil Min +4 · 2 citations
Engineering · Physics and Astronomy · #Coulomb #Diquark #Exponent #Gauge (firearms) #Gauge boson #Gauge fixing #Gauge theory #High-Energy Particle Collisions Research #Mathematical physics #Order (exchange) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Renormalization #Superconducting Materials and Applications #Superconductivity #hep-ph
paper · pdf · doi:10.1016/s0370-2693(03)00731-7
published as Phys.Lett. B565 (2003) 153-158 · 9 pages, 2 figures, RevTeX, Minor modifications
arxiv created 2003/05/07 · openalex publication_date 2003/06/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We find a (nonlocal) gauge where the wavefunction renormalization constant does not get any corrections for all momenta in the hard-dense loop approximation. In this gauge, we solve the Schwinger–Dyson equations for the diquark condensate in dense QCD to calculate the Cooper-pair gap. We determine not only the exponent but also the prefactor of the gap in a gauge independent way. We find that the higher order corrections increase the gap only by about 1.6 times to the leading order gap at Coulomb gauge.