Effects of the particle-particle channel on properties of low-lying vibrational states

Details Effects of the particle-particle channel on properties of low-lying vibrational states Effects of the particle-particle channel on properties of low-lying vibrational states

2007-11-15

arxiv.org/abs/0711.2423v1

Phys.Rev.C77:024322,2008

Physics

Nuclear Physics

Nuclear Theory

8 pages REVTEX, 4 eps figures, submitted to Phys. Rev. C

Scientific paper

10.1103/PhysRevC.77.024322

Making use of the finite rank separable approach for the quasiparticle random phase approximation enables one to perform nuclear structure calculations in very large two-quasiparticle spaces. The approach is extended to take into account the residual particle-particle interaction. The calculations are performed by using Skyrme interactions in the particle-hole channel and density-dependent zero-range interactions in the particle-particle channel. To illustrate our approach, we study the properties of the lowest quadrupole states in the even-even nuclei $^{128}$Pd, $^{130}$Cd, $^{124-134}$Sn, $^{128-136}$Te and $^{136}$Xe.

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