1999/06/30 by Thomas Schäfer, Thomas Schaefer, Frank Wilczek · 2 citations
Engineering · Physics and Astronomy · #Color superconductivity #Condensed matter physics #Gluon #High-Energy Particle Collisions Research #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Strange matter #Superconducting Materials and Applications #Superconductivity #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.60.114033
published as Phys. Rev. D 60, 114033 (1999) · 19 pages, 6 figures. I accidentally replaced the paper with an outdated version. This version has typos corrected and will appear in PRD
arxiv created 1999/09/07 · openalex publication_date 1999/11/12 · openalex created_date 2016/06/24 · arxiv updated 2016/08/24 · openalex updated_date 2026/08/06
We study color superconductivity in QCD at an asymptotically large chemical potential. In this limit, pairing is dominated by perturbative one-gluon exchange. We derive the Eliashberg equation for the pairing gap and solve this equation numerically. Taking into account both magnetic and electric gluon exchanges, we find \ensuremathΔ\ensuremath∼g^\ensuremath-5exp(\ensuremath-c/g) with c=3\ensuremathπ2/√(2), verifying a recent result by Son. For chemical potentials that are of physical interest, \ensuremathμ<1 GeV, the calculation ceases to be reliable quantitatively, but our results suggest that the gap can be as large as 100 MeV.