Is $^{40}$Mg a Borromean halo nucleus? A case built on the electric-dipole response
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866912868364976128 |
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| author | Singh, Jagjit Casal, J. Walet, N. R. Horiuchi, W. Satuła, W. |
| author_facet | Singh, Jagjit Casal, J. Walet, N. R. Horiuchi, W. Satuła, W. |
| contents | We investigate the low-energy electric-dipole response of $^{40}$Mg using a $^{38}$Mg$+n+n$ three-body model. This model is implemented using a three-body hyperspherical formalism with an analytical transformed harmonic oscillator basis. In this study, two different neutron-neutron interactions are considered: a scalar Gaussian density-dependent central potential and a more realistic finite-range potential which includes central, spin-orbit, and tensor components. We examine how electric-dipole response is affected by the choice of the interaction. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_01989 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Is $^{40}$Mg a Borromean halo nucleus? A case built on the electric-dipole response Singh, Jagjit Casal, J. Walet, N. R. Horiuchi, W. Satuła, W. Nuclear Theory We investigate the low-energy electric-dipole response of $^{40}$Mg using a $^{38}$Mg$+n+n$ three-body model. This model is implemented using a three-body hyperspherical formalism with an analytical transformed harmonic oscillator basis. In this study, two different neutron-neutron interactions are considered: a scalar Gaussian density-dependent central potential and a more realistic finite-range potential which includes central, spin-orbit, and tensor components. We examine how electric-dipole response is affected by the choice of the interaction. |
| title | Is $^{40}$Mg a Borromean halo nucleus? A case built on the electric-dipole response |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2602.01989 |