Onset of the j−1 anomaly in 103Ag
Abstract
The j − 1 anomaly is associated with the atypical ordering of the 7 / 2 + and 9 / 2 + states, arising from the π g 9 / 2 − 3 multiplet. According to the shell model, M 1 transitions between the states of the same- j multiplet are forbidden. Yet, such transitions are observed in odd-A Ag nuclei. Therefore, it is of upmost interest to study M 1 transitions strengths. However, the only silver nucleus, where lifetime data exists to date is 101 Ag, but this nucleus does not exhibit the anomalous trend, observed in the heavier Ag nuclei. Indeed, the lightest Ag nucleus, where the j − 1 anomaly occurs is 103 Ag. Therefore, 103 Ag is in the focus of the present article, where new lifetime data is acquired via RDDS measurements. Reduced electromagnetic transition probabilities are evaluated and compared to Empiric and Large-Scale Shell-Model calculations.
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BibTeX
@article{lalkovski2026onset,
title = {{Onset of the j−1 anomaly in $^103$Ag}},
author = {S Lalkovski and Ir.B Vasilev and D Ivanova and S Kisyov and G Stoev and B Maheshwari and P van Isacker and R Lica and C Mihai and A Turturica and L Atanasova and R Borcea and M Boromiza and S Calinescu and C Clisu Stan and C Costache and A Gandhi and R Marginean and N Marginean and C Müller-Gatermann and A Olacel and N.L Petrov and L Stan and E.A Stefanova and I Stiru and S Toma and G Turturica and S Ujeniuc and O Yordanov},
journal = {Physics Letters B},
year = {2026},
month = sep,
doi = {10.1016/j.physletb.2026.140957},
url = {https://hal.science/hal-05769611v1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Onset of the j−1 anomaly in ^103Ag
AU - S Lalkovski
AU - Ir.B Vasilev
AU - D Ivanova
AU - S Kisyov
AU - G Stoev
AU - B Maheshwari
AU - P van Isacker
AU - R Lica
AU - C Mihai
AU - A Turturica
AU - L Atanasova
AU - R Borcea
AU - M Boromiza
AU - S Calinescu
AU - C Clisu Stan
AU - C Costache
AU - A Gandhi
AU - R Marginean
AU - N Marginean
AU - C Müller-Gatermann
AU - A Olacel
AU - N.L Petrov
AU - L Stan
AU - E.A Stefanova
AU - I Stiru
AU - S Toma
AU - G Turturica
AU - S Ujeniuc
AU - O Yordanov
PY - 2026
DA - 2026/09/29
JO - Physics Letters B
DO - 10.1016/j.physletb.2026.140957
UR - https://hal.science/hal-05769611v1
AB - The j − 1 anomaly is associated with the atypical ordering of the 7 / 2 + and 9 / 2 + states, arising from the π g 9 / 2 − 3 multiplet. According to the shell model, M 1 transitions between the states of the same- j multiplet are forbidden. Yet, such transitions are observed in odd-A Ag nuclei. Therefore, it is of upmost interest to study M 1 transitions strengths. However, the only silver nucleus, where lifetime data exists to date is 101 Ag, but this nucleus does not exhibit the anomalous trend, observed in the heavier Ag nuclei. Indeed, the lightest Ag nucleus, where the j − 1 anomaly occurs is 103 Ag. Therefore, 103 Ag is in the focus of the present article, where new lifetime data is acquired via RDDS measurements. Reduced electromagnetic transition probabilities are evaluated and compared to Empiric and Large-Scale Shell-Model calculations.
SN - 0370-2693
SN - 1873-2445
ER -