Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1998-11-22
Phys.Rev.C59:2052-2055,1999
Physics
Nuclear Physics
Nuclear Theory
12 pages, 2 EPS-figures, uses psfig.sty, eq.(9) corrected
Scientific paper
10.1103/PhysRevC.59.2052
We consider pairing in a dilute system of Fermions with a short-range interaction. While the theory is ill-defined for a contact interaction, the BCS equations can be solved in the leading order of low-energy effective field theory. The integrals are evaluated with the dimensional regularization technique, giving analytic formulas relating the pairing gap, the density, and the energy density to the two-particle scattering length.
Bertsch George F.
Papenbrock Thomas
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