Bibliographic Details
| Title: |
N=16 magicity revealed at the proton drip-line through the study of 35Ca |
| Authors: |
Lalanne, L., Sorlin, O., Poves, A., Assié, M., Hammache, F., Koyama, S., Suzuki, D., Flavigny, F., Girard-Alcindor, V., Lemasson, A., Matta, A., Roger, T., Beaumel, D., Blumenfeld, Y, Brown, B. A., Santos, F. De Oliveira, Delaunay, F., de Séréville, N., Franchoo, S., Gibelin, J., Guillot, J., Kamalou, O., Kitamura, N., Lapoux, V., Mauss, B., Morfouace, P., Pancin, J., Saito, T. Y., Stodel, C., Thomas, J-C. |
| Publication Year: |
2023 |
| Collection: |
Nuclear Experiment |
| Subject Terms: |
Nuclear Experiment |
| More Details: |
The last proton bound calcium isotope $^{35}$Ca has been studied for the first time, using the $^{37}$Ca($p, t$)$^{35}$Ca two neutron transfer reaction. The radioactive $^{37}$Ca nuclei, produced by the LISE spectrometer at GANIL, interacted with the protons of the liquid hydrogen target CRYPTA, to produce tritons $t$ that were detected in the MUST2 detector array, in coincidence with the heavy residues Ca or Ar. The atomic mass of $^{35}$Ca and the energy of its first 3/2$^+$ state are reported. A large $N=16$ gap of 4.61(11) MeV is deduced from the mass measurement, which together with other measured properties, makes $^{36}$Ca a doubly-magic nucleus. The $N = 16$ shell gaps in $^{36}$Ca and $^{24}$O are of similar amplitude, at both edges of the valley of stability. This feature is discussed in terms of nuclear forces involved, within state-of-the-art shell model calculations. Even though the global agreement with data is quite convincing, the calculations underestimate the size of the $N = 16$ gap in 36Ca by 840(110) keV. |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/2302.14382 |
| Accession Number: |
edsarx.2302.14382 |
| Database: |
arXiv |
