The evidence of $N=16$ shell closure and $β$-delayed neutron emission from $^{25}$F
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2024
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| author | Peltier, J. F. Xu, Z. Y. Cox, I. Grzywacz, R. Lubna, R. S. Kitamura, N. Neupane, S. Allmond, J. M. Christie, J. Doetsch, A. A. Dyszel, P. Gaballah, T. King, T. T. Kolos, K. Liddick, S. N. Madurga, M. Ogunbeku, T. H. Sherrill, B. M. Siegl, K. |
| author_facet | Peltier, J. F. Xu, Z. Y. Cox, I. Grzywacz, R. Lubna, R. S. Kitamura, N. Neupane, S. Allmond, J. M. Christie, J. Doetsch, A. A. Dyszel, P. Gaballah, T. King, T. T. Kolos, K. Liddick, S. N. Madurga, M. Ogunbeku, T. H. Sherrill, B. M. Siegl, K. |
| contents | We measured the $β$-delayed neutron emission from $^{25}$F for the first time at the Facility for Rare Isotope Beams (FRIB). Using combined neutron and $γ$-ray detector systems of the FRIB Decay Station Initiator (FDSi), we observed $β$-decay transitions populating neutron unbound states between 4.2 and 8 MeV in $^{25}$Ne. The experimental results led to the revision of the $β$-decay half-life and $β$-delayed neutron-emission probability of $^{25}$F. The $β$-decay strength distribution of $^{25}$F extracted from the data agrees with the shell-model predictions using the USDB and SDPF-M effective interactions. This result indicates that the spherical neutron $N = 16$ shell gap persists in $^{25}$F and $^{25}$Ne. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_12071 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The evidence of $N=16$ shell closure and $β$-delayed neutron emission from $^{25}$F Peltier, J. F. Xu, Z. Y. Cox, I. Grzywacz, R. Lubna, R. S. Kitamura, N. Neupane, S. Allmond, J. M. Christie, J. Doetsch, A. A. Dyszel, P. Gaballah, T. King, T. T. Kolos, K. Liddick, S. N. Madurga, M. Ogunbeku, T. H. Sherrill, B. M. Siegl, K. Nuclear Experiment We measured the $β$-delayed neutron emission from $^{25}$F for the first time at the Facility for Rare Isotope Beams (FRIB). Using combined neutron and $γ$-ray detector systems of the FRIB Decay Station Initiator (FDSi), we observed $β$-decay transitions populating neutron unbound states between 4.2 and 8 MeV in $^{25}$Ne. The experimental results led to the revision of the $β$-decay half-life and $β$-delayed neutron-emission probability of $^{25}$F. The $β$-decay strength distribution of $^{25}$F extracted from the data agrees with the shell-model predictions using the USDB and SDPF-M effective interactions. This result indicates that the spherical neutron $N = 16$ shell gap persists in $^{25}$F and $^{25}$Ne. |
| title | The evidence of $N=16$ shell closure and $β$-delayed neutron emission from $^{25}$F |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2412.12071 |