Accessing the Single-Particle Structure of the Pygmy Dipole Resonance in $^{208}$Pb
Abstract
New experimental data on the neutron single-particle character of the Pygmy Dipole Resonance (PDR) in Pb are presented. They were obtained from and resonant proton scattering experiments performed at the Q3D spectrograph of the Maier-Leibnitz Laboratory in Garching, Germany. The new data are compared to the large suite of complementary, experimental data available for Pb and establish as an additional, valuable, experimental probe to study the PDR and its collectivity. Besides the single-particle character of the states, different features of the strength distributions are discussed and compared to Large-Scale-Shell-Model (LSSM) and energy-density functional (EDF) plus Quasiparticle-Phonon Model (QPM) theoretical approaches to elucidate the microscopic structure of the PDR in Pb.
Keywords
Cite
@article{arxiv.2009.01151,
title = {Accessing the Single-Particle Structure of the Pygmy Dipole Resonance in $^{208}$Pb},
author = {M. Spieker and A. Heusler and B. A. Brown and T. Faestermann and R. Hertenberger and G. Potel and M. Scheck and N. Tsoneva and M. Weinert and H. -F. Wirth and A. Zilges},
journal= {arXiv preprint arXiv:2009.01151},
year = {2020}
}
Comments
9 pages, 4 figures