Portal de Periódicos da CAPES

New Magic Number, N = 16 , near the Neutron Drip Line

2000; American Physical Society; Volume: 84; Issue: 24 Linguagem: Inglês

10.1103/physrevlett.84.5493

1092-0145

A. Ozawa, T. Kobayashi, Toshio Suzuki, K. Yoshida, I. Tanihata,

Advanced NMR Techniques and Applications

We have surveyed the neutron separation energies (S(n)) and the interaction cross sections (sigma(I)) for the neutron-rich p-sd and the sd shell region. Very recently, both measurements reached up to the neutron drip line, or close to the drip line, for nuclei of Z</=8. A neutron-number dependence of S(n) shows clear breaks at N = 16 near the neutron drip line (T(Z)>/=3), which shows the creation of a new magic number. A neutron-number dependence of sigma(I) shows a large increase of sigma(I) for N = 15, which supports the new magic number. The origin of the new magic number is also discussed.