Mass number dependence of nuclear pairing

摘要

Large scale Hartree-Fock-Bogoliubov (HFB) calculations with the finite-range Gogny force DIS have been per-formed in order to extract the cot-responding theoretical average mass dependence of the nuclear gap values. Good agreement with experimental data from the three-point filter Delta((3))(N) with N odd has been found for both the neutron and proton gaps. The results of our study support earlier findings W. Satula, J. Dobaczewski, W. Nazarewicz, Phys. Rev. Lett. 81 (1998) 3599 that the mass dependence of the gap is much weaker than the so far accepted 12 A(-1/2) MeV law. (C) 2002 Elsevier Science B.V. All rights reserved. References: 17