Physics Maths Engineering
Kamila Sieja
Kamila Sieja
Institute Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (CNRS, UMR7178),
Neutron-rich Sr nuclei around N = 60 exhibit a sudden shape transition from a spherical ground state to strongly prolate-deformed. Recently, much new insight into the structure of Sr isotopes in this region has been gained through experimental studies of the excited levels, transition strengths, and spectroscopic factors. In this work, a “classic” shell model description of strontium isotopes from N = 50 to N = 58 is provided, using a natural valence space outside the 78Ni core. Both even–even and even–odd isotopes are addressed. In particular, spectroscopic factors are computed to shed more light on the structure of low-energy excitations and their evolution along the Sr chain. The origin of deformation at N = 60 is mentioned in the context of the present and previous shell model and Monte Carlo shell model calculations.
This study focuses on understanding the single-particle and collective structures in neutron-rich strontium (Sr) isotopes. It explores the behavior of these isotopes, particularly their nuclear structure, which plays a key role in the understanding of atomic nuclei far from stability.
Neutron-rich isotopes are atomic nuclei that contain a significantly higher number of neutrons compared to protons. These isotopes are often unstable and can provide valuable insights into the nuclear forces and the limits of nuclear stability, especially in regions where traditional models may not be applicable.
Single-particle structure refers to the behavior of individual nucleons (protons or neutrons) within a nucleus, while collective structure involves the collective motion of all nucleons within the nucleus. The study of these structures is crucial for understanding the properties of exotic nuclei, like neutron-rich isotopes.
The authors employ advanced nuclear models and computational methods to analyze the properties of neutron-rich Sr isotopes. These models help simulate the interactions between neutrons and protons, as well as their collective behavior, offering insights into the structure and stability of these exotic isotopes.
The study reveals that neutron-rich Sr isotopes exhibit both single-particle and collective behaviors that can be distinctly observed in their nuclear structure. These isotopes show a complex interplay between these two forms of structure, providing a more detailed understanding of the nuclear forces at play in these exotic nuclei.
Studying neutron-rich Sr isotopes helps expand the understanding of nuclear forces, particularly in regions far from stability. These findings contribute to the broader field of nuclear physics by improving models of nuclear structure, which have applications in various fields, including astrophysics and nuclear energy research.
The results of this study pave the way for further investigations into neutron-rich isotopes, helping to refine models of nuclear structure. It may also aid in the development of experimental techniques to probe exotic nuclei, leading to a deeper understanding of the limits of nuclear stability and the forces governing the behavior of atomic nuclei.
Show by month | Manuscript | Video Summary |
---|---|---|
2025 April | 7 | 7 |
2025 March | 77 | 77 |
2025 February | 46 | 46 |
2025 January | 52 | 52 |
2024 December | 60 | 60 |
2024 November | 45 | 45 |
2024 October | 34 | 34 |
2024 September | 49 | 49 |
2024 August | 33 | 33 |
2024 July | 36 | 36 |
2024 June | 34 | 34 |
2024 May | 38 | 38 |
2024 April | 48 | 48 |
2024 March | 42 | 42 |
2024 February | 36 | 36 |
2024 January | 28 | 28 |
2023 December | 32 | 32 |
2023 November | 50 | 50 |
2023 October | 32 | 32 |
2023 September | 25 | 25 |
2023 August | 19 | 19 |
2023 July | 32 | 32 |
2023 June | 19 | 19 |
2023 May | 32 | 32 |
2023 April | 42 | 42 |
2023 March | 48 | 48 |
2023 February | 1 | 1 |
2023 January | 3 | 3 |
2022 December | 31 | 31 |
2022 November | 59 | 59 |
2022 October | 37 | 37 |
2022 September | 29 | 29 |
2022 August | 49 | 49 |
2022 July | 50 | 50 |
2022 June | 95 | 95 |
2022 May | 43 | 43 |
2022 April | 31 | 31 |
Total | 1424 | 1424 |
Show by month | Manuscript | Video Summary |
---|---|---|
2025 April | 7 | 7 |
2025 March | 77 | 77 |
2025 February | 46 | 46 |
2025 January | 52 | 52 |
2024 December | 60 | 60 |
2024 November | 45 | 45 |
2024 October | 34 | 34 |
2024 September | 49 | 49 |
2024 August | 33 | 33 |
2024 July | 36 | 36 |
2024 June | 34 | 34 |
2024 May | 38 | 38 |
2024 April | 48 | 48 |
2024 March | 42 | 42 |
2024 February | 36 | 36 |
2024 January | 28 | 28 |
2023 December | 32 | 32 |
2023 November | 50 | 50 |
2023 October | 32 | 32 |
2023 September | 25 | 25 |
2023 August | 19 | 19 |
2023 July | 32 | 32 |
2023 June | 19 | 19 |
2023 May | 32 | 32 |
2023 April | 42 | 42 |
2023 March | 48 | 48 |
2023 February | 1 | 1 |
2023 January | 3 | 3 |
2022 December | 31 | 31 |
2022 November | 59 | 59 |
2022 October | 37 | 37 |
2022 September | 29 | 29 |
2022 August | 49 | 49 |
2022 July | 50 | 50 |
2022 June | 95 | 95 |
2022 May | 43 | 43 |
2022 April | 31 | 31 |
Total | 1424 | 1424 |