This is a preprint and may not have undergone formal peer review
Lehr, C., Duer, M., Saito, A. T. et al. (80 more authors) (2026) The dipole strength distribution of $^8$He and decay characteristics. [Preprint]
Abstract
The weak binding and spatially extended neutron densities characteristic of drip-line nuclei give rise to a distinctive low-energy dipole response. The drip-line nucleus $^8$He is the most neutron-rich bound nucleus with a mass-to-charge ratio of $A/Z=4$. We measure the dipole response of $^8$He, including for the first time the four-neutron decay channel. A total dipole strength of $\sum B(E1)(E^*
Metadata
| Item Type: | Preprint |
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| Authors/Creators: |
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| Keywords: | nucl-ex,nucl-th |
| Dates: |
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| Institution: | The University of York |
| Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
| Date Deposited: | 02 Apr 2026 17:00 |
| Last Modified: | 21 May 2026 23:29 |
| Published Version: | https://doi.org/10.1103/vp3m-5rpp |
| Status: | Published |
| Identification Number: | 10.1103/vp3m-5rpp |
| Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:239684 |

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