Evidence for particle stability of 31 F and particle instability of 25 N and 28 O

Sakurai, H.; Lukyanov, S.M.; Notani, M.; Aoi, N.; Beaumel, D.; Fukuda, N.; Hirai, M.; Ideguchi, E.; Imai, N.; Ishihara, M.

doi:10.1016/S0370-2693(99)00015-5

Evidence for particle stability of 31 F and particle instability of 25 N and 28 O

1999

5 pages

Published in:

Phys.Lett.B 448 (1999) 180-184

Published: 1999

DOI:

10.1016/S0370-2693(99)00015-5

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Abstract: (Elsevier)

The neutron drip line up to fluorine has been investigated by the projectile fragmentation of a 94.1 A MeV 40 Ar beam at the fragment separator RIPS at RIKEN. A new neutron-rich isotope, 31 F, has been observed for the first time while clear evidence for the particle instability of 24,25 N, 27,28 O and 30 F has been obtained. The sudden change in stability from oxygen to fluorine may demonstrate the onset of deformation for the neutron-rich fluorine isotopes.

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21.10.Dr
27.30.+t

References(23)

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