A stabilized pairing functional

Details A stabilized pairing functional A stabilized pairing functional

2008-11-10

arxiv.org/abs/0811.1442v1

Physics

Nuclear Physics

Nuclear Theory

6 pages, 5 figures

Scientific paper

10.1140/epja/i2008-10615-5

We propose a modified pairing functional for nuclear structure calculations which avoids the abrupt phase transition between pairing and non-pairing states. The intended application is the description of nuclear collective motion where the smoothing of the transition is compulsory to remove singularities. The stabilized pairing functional allows a thoroughly variational formulation, unlike the Lipkin-Nogami (LN) scheme which is often used for the purpose of smoothing. First applications to nuclear ground states and collective excitations prove the reliability and efficiency of the proposed stabilized pairing.

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