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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2506.20144 |
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Table of Contents:
- The structure of the odd-$A$ silver isotopes $^{103-115}$Ag is discussed within the frame of the Interacting boson-fermion model (IBFM). An overview of their key properties is presented, with particular attention paid to the $"$J-1 anomaly$"$, represented by an abnormal ordering of the lowest 7/2$^{+}$ and 9/2$^{+}$ states. By examining previously published data and newly performed calculations, it is demonstrated that the experimentally known level schemes and electromagnetic properties of $^{103-115}$Ag can be reproduced well within IBFM-1 by using a consistent set of model parameters. The contribution of different single-particle orbitals to the structure of the lowest-lying excited nuclear states in $^{103-115}$Ag is discussed. Given that the $J$-1 anomaly brings down the 7/2$^{+}$ level from the $j^{-3}$ multiplet to energies which can be thermally populated in hot stellar environments, the importance of low-lying excited states in odd-$A$ silver isotopes for astrophysical processes is outlined.