Magnetic dipole transition in $^{48}$Ca
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2023
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866929377858551808 |
|---|---|
| author | Acharya, B. Hu, B. S. Bacca, S. Hagen, G. Navrátil, P. Papenbrock, T. |
| author_facet | Acharya, B. Hu, B. S. Bacca, S. Hagen, G. Navrátil, P. Papenbrock, T. |
| contents | The magnetic dipole transition strength $B(M1)$ of $^{48}$Ca is dominated by a single resonant state at an excitation energy of 10.23 MeV. Experiments disagree about $B(M1)$ and this impacts our understanding of spin flips in nuclei. We performed ab initio computations based on chiral effective field theory and found that $B(M1:0^+\rightarrow1^+)$ lies in the range from $7.0$ to $10.2~μ_N^2$. This is consistent with a $(γ,n)$ experiment but larger than results from $(e,e^\prime)$ and $(p,p')$ scattering. Two-body currents yield no quenching of the $B(M1)$ strength and continuum effects reduce it by about 10%. For a validation of our approach, we computed magnetic moments in $^{47,49}$Ca and performed benchmark calculations in light nuclei. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_11438 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Magnetic dipole transition in $^{48}$Ca Acharya, B. Hu, B. S. Bacca, S. Hagen, G. Navrátil, P. Papenbrock, T. Nuclear Theory Nuclear Experiment The magnetic dipole transition strength $B(M1)$ of $^{48}$Ca is dominated by a single resonant state at an excitation energy of 10.23 MeV. Experiments disagree about $B(M1)$ and this impacts our understanding of spin flips in nuclei. We performed ab initio computations based on chiral effective field theory and found that $B(M1:0^+\rightarrow1^+)$ lies in the range from $7.0$ to $10.2~μ_N^2$. This is consistent with a $(γ,n)$ experiment but larger than results from $(e,e^\prime)$ and $(p,p')$ scattering. Two-body currents yield no quenching of the $B(M1)$ strength and continuum effects reduce it by about 10%. For a validation of our approach, we computed magnetic moments in $^{47,49}$Ca and performed benchmark calculations in light nuclei. |
| title | Magnetic dipole transition in $^{48}$Ca |
| topic | Nuclear Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2311.11438 |