Search for halo nucleus in Mg isotopes through the measurements of reaction cross sections towards the vicinity of neutron drip line

M. Takechi, Shinji Suzuki, D. Nishimura, Mitsunori Fukuda, T. Ohtsubo, M. Nagashima, Toshio Suzuki, Takayuki Yamaguchi, A. Ozawa, T. Moriguchi,

EPJ Web of Conferences · 2014 · 15 citations · 11 references

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Abstract

Reaction cross sections (σR) for 24–38Mg on C targets at the energies of around 240 MeV/nucleon have been measured precisely at RIBF, RIKEN for the purpose of obtaining the crucial information on the changes of nuclear structure in unstable nuclei, especially around the so-called “island of inversion” region. In the island of inversion region, which includes neutron-rich Ne, Na, and Mg isotopes, the vanishing of the N = 20 magic number for neutrons have been discussed along with nuclear deformation. The present result suggest deformation features of Mg isotopes and shows a large cross section of weakly-bound nucleus 37Mg, which could be caused by a neutron halo formation.

References

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