Investigation of the Pygmy Dipole Resonance in photon scattering experiments

The Pygmy Dipole Resonance (PDR) is the dominating electric dipole excitation below and around the particle separation threshold and exhausts only a few percent of the energy-weighted sum rule. Nevertheless, it may have some impact on reaction rates in nucleosynthesis processes. Therefore, investiga...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1643; no. 1; pp. 12148 - 12153
Main Authors Müscher, Miriam, Isaak, Johann, Savran, Deniz, Schwengner, Ronald, Wilhelmy, Julius, Zilges, Andreas
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.12.2020
Subjects
Electric dipoles
Excitation
Nuclear fusion
Nuclei (nuclear physics)
Photon scatter
Photons
Physics
Quantum numbers
Resonance fluorescence
Resonance scattering
Sum rules
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Summary:The Pygmy Dipole Resonance (PDR) is the dominating electric dipole excitation below and around the particle separation threshold and exhausts only a few percent of the energy-weighted sum rule. Nevertheless, it may have some impact on reaction rates in nucleosynthesis processes. Therefore, investigations to get more insights in this excitation mode are crucial. A common approach to study the PDR of atomic nuclei is the Nuclear Resonance Fluorescence method (NRF) which bases on real-photon scattering. Absolute cross sections, spin and parity quantum numbers are determined in a model-independent way if suited experimental setups are used. In general, there are two complementary NRF experiments which are presented in this paper.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1643/1/012148