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

Abstract : 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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http://hal.in2p3.fr/in2p3-00188238
Contributor : Dominique Girod <>
Submitted on : Friday, November 16, 2007 - 10:19:26 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:29 PM

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A.P. Severyukhin, V.V. Voronov, N. van Giai. Effects of the particle-particle channel on properties of low-lying vibrational states. Physical Review C, American Physical Society, 2008, 77, pp.024322. ⟨10.1103/PhysRevC.77.024322⟩. ⟨in2p3-00188238⟩

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