Two-phonon structure of the neutron-rich nuclei. (December 2020)

• Record Type: Journal Article
• Authors: Severyukhin, A.P.; Arsenyev, N.N.; Testov, D.
• Is Part Of: Journal of physics. Volume 1686(2020)
• Publication Date: 2020-12
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1686/1/012028
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Starting from the Skyrme energy-density functional, the microscopic model of the spin-isospin excitations is developed for the β -delayed γ -spectroscopy. We take into account the coupling between one- and two-phonon terms in the wave functions of 1 + states of daughter nuclei. An extension of the two-phonon space allowing for the additional charge-exchange phonons substantially enriches the 1 + spectrum. As an example, the β -decay rates of neutron-rich nuclei 126, 128 Cd are discussed.