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Energy separation of the 1⁺/1⁻ parity doublet in ²⁰Ne

Beller, J. ; Wagner, J. ; Ahmed, M. ; Deleanu, D. ; Filipescu, D. M. ; Glodariu, T. ; Isaak, J. ; Kelley, J. H. ; Kwan, E. ; Pietralla, N. ; Raut, R. ; Romig, C. ; Rusev, G. ; Scheck, M. ; Stave, S. C. ; Tonchev, A. ; Tornow, W. ; Weller, H. R. ; Zamfir, N.-V. ; Zweidinger, M. (2024)
Energy separation of the 1⁺/1⁻ parity doublet in ²⁰Ne.
In: Journal of Physics: Conference Series, 2012, 366 (1)
doi: 10.26083/tuprints-00020778
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Energy separation of the 1⁺/1⁻ parity doublet in ²⁰Ne
Language: English
Date: 6 February 2024
Place of Publication: Darmstadt
Year of primary publication: 2012
Place of primary publication: Bristol
Publisher: IOP Publishing
Journal or Publication Title: Journal of Physics: Conference Series
Volume of the journal: 366
Issue Number: 1
Collation: 5 Seiten
DOI: 10.26083/tuprints-00020778
Corresponding Links:
Origin: Secondary publication DeepGreen

The parity doublet of 1⁺/1⁻ states of Ne⁻²⁰ at 11.26 MeV excitation energy is one of the best known test cases to study the weak part of the nuclear Hamiltonian. The feasibility of parity violation experiments depend on the effective nuclear enhancement factor (RN/|E(1⁺) − E(l⁻)|) which amplifies the impact of the matrix element of the weak interaction on observables indicating parity mixing. An extreme large value of Rn/|E(1⁺) − E(l⁻)| = (670 ± 7000) MeV⁻¹ was reported for the doublet in ²⁰Ne. The large uncertainty depends amongst others on the large uncertainty of |E(1⁺) − E(l⁻)| = 7.7±5.5 keV of the parity doublet. Nuclear resonance fluorescence (NRF) experiments with linearly and circularly polarized photon beams were performed at the High Intensity Gamma-Ray Source at Duke University, Durham, NC, USA, to determine the energy difference of the parity doublet with higher precision. The different angular distributions for 0⁺ → 1⁻ → 0⁺ and 0⁺ → 1⁺ → 0⁺ NRF cascades in polarized γ-ray beams were used to determine the energy difference of the parity doublet to 2.9(13) keV.

Identification Number: Artikel-ID: 012003
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-207783
Additional Information:

XIX International School on Nuclear Physics, Neutron Physics and Applications (VARNA 2011) 19–25 September 2011, Varna, Bulgaria

Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 06 Feb 2024 10:15
Last Modified: 26 Apr 2024 09:02
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20778
PPN: 517095149
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