Nuclear shell structure and response with quasiparticlevibration coupling

Elena Litvinova, Peter Ring

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Scopus citations

Abstract

Extensions of the covariant density functional theory by quasiparticlevibration coupling (QVC) are discussed. The formalism for one-body and two-body propagators in the nuclear medium allows calculations of single-particle energies and spectroscopic factors as well as the response to various types of excitations. In both cases QVC leads to a fragmentation of states, in agreement with experimental observations. Peculiarities of various 2p2h coupling schemes in the nuclear response function are discussed. The theory of the spin-isospin response includes both QVC and pion exchange and provides a framework for calculations of beta-decay, electron capture and charge-exchange reaction characteristics. The presented approaches are illustrated by realistic calculations for medium-mass and heavy nuclei.

Original languageEnglish
Title of host publicationRelativistic Density Functional for Nuclear Structure
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages469-516
Number of pages48
ISBN (Electronic)9789814733267
ISBN (Print)9789814733250
DOIs
StatePublished - 1 Mar 2016

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