Nuclear Dynamics at the Particle Threshold

Abstract

Recently, new low-energy modes of excitation called pygmy resonances have been observed. Their distinct feature is the close connection to nuclear skin oscillations. A successful description of the pygmy resonances could be achieved in a microscopic theoretical approach which incorporates the density functional theory and QRPA formalism extended with multi-phonon degrees of freedom. The latter is found of crucial importance for the understanding of the fine structure of nuclear electric and magnetic excitations at low energies. Corresponding microscopic multi-phonon response functions are implemented in the studies of s-process of nucleosynthesis.

Comments: A talk given at the 'International Workshop on Nuclear Dynamics in Heavy-Ion Reactions (IWND2014)', Lanzhou, China, 15-19 August, 2014, 8 pages, 6 figures