Mashtakov, KR, Ponomarev, V Yu, Scheck, M, Finch, SW, Isaak, J, Zweidinger, M, Agar, O, Bathia, C, Beck, T, Beller, J et al (show 25 more authors)
(2020)
Structure of high-lying levels populated in the $^{96}$Y $\rightarrow
^{96}$Zr $β$ decay.
[Preprint]
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Abstract
The nature of $J^{\pi}=1^-$ levels of $^{96}$Zr below the $\beta$-decay $Q_{\beta}$ value of $^{96}$Y has been investigated in high-resolution $\gamma$-ray spectroscopy following the $\beta$ decay as well as in a campaign of inelastic photon scattering experiments. Branching ratios extracted from $\beta$ decay allow the absolute $E1$ excitation strength to be determined for levels populated in both reactions. The combined data represents a comprehensive approach to the wavefunction of $1^-$ levels below the $Q_{\beta}$ value, which are investigated in the theoretical approach of the Quasiparticle Phonon Model. This study clarifies the nuclear structure properties associated with the enhanced population of high-lying levels in the $^{96}$Y$_{gs}$ $\beta$ decay, one of the three most important contributors to the high-energy reactor antineutrino spectrum.
| Item Type: | Preprint |
|---|---|
| Uncontrolled Keywords: | nucl-ex, nucl-ex |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 06 Apr 2020 10:22 |
| Last Modified: | 15 Mar 2024 15:38 |
| DOI: | 10.48550/arxiv.2003.11572 |
| Open Access URL: | https://www.sciencedirect.com/science/article/pii/... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3082113 |
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