Higher order corrections to color superconducting gaps
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Publication:1396137
DOI10.1016/S0370-2693(03)00731-7zbMATH Open1063.82561arXivhep-ph/0303181MaRDI QIDQ1396137
Publication date: 29 June 2003
Published in: Physics Letters B (Search for Journal in Brave)
Abstract: 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.
Full work available at URL: https://arxiv.org/abs/hep-ph/0303181
Strong interaction, including quantum chromodynamics (81V05) Statistical mechanics of semiconductors (82D37)
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