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Splitting of the Pygmy Dipole Resonance

Savran, D. ; Endres, J. ; Harakeh, M. N. ; Pietralla, N. ; Sonnabend, K. ; Stoica, V. I. ; Wörtche, H. J. ; Berg, A. M. van den ; Zilges, A. (2024)
Splitting of the Pygmy Dipole Resonance.
In: Journal of Physics: Conference Series, 2011, 312 (9)
doi: 10.26083/tuprints-00020765
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Splitting of the Pygmy Dipole Resonance
Language: English
Date: 23 January 2024
Place of Publication: Darmstadt
Year of primary publication: 2011
Place of primary publication: Bristol
Publisher: IOP Publishing
Journal or Publication Title: Journal of Physics: Conference Series
Volume of the journal: 312
Issue Number: 9
Collation: 6 Seiten
DOI: 10.26083/tuprints-00020765
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

We report on experiments using the (α, α′ γ) method to investigate the structure of the Pygmy Dipole Resonance (PDR) in the nuclei ⁹⁴Mo, ¹²⁴Sn, ¹³⁸Ba and ¹⁴⁰Ce. The experiments were performed with the Big-Bite Spectrometer (BBS) at the KVI at an incident energy of Eα = 136 MeV. The method allows a clean separation of the PDR from other excitations in the same energy region by selecting the ground-state γ-decay channel. In addition, the high resolution of the γ-ray spectroscopy using high-purity Germanium detectors allows a state-to-state analysis even in the case of the rather high level density of the investigated nuclei. The comparison to (γ,γ′) experiments on the same nuclei reveals a splitting of the PDR into two groups of states with different underlying structure.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-207654
Additional Information:

International Nuclear Physics Conference 2010 (INPC2010)

Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 23 Jan 2024 10:31
Last Modified: 26 Feb 2024 09:20
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20765
PPN: 515773697
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