| Autor: |
Gade, A, Bazin, D, Brown, BA, Campbell, CM, Cook, JM, Ettenauer, S, Glasmacher, T, Kemper, KW, McDaniel, S, Obertelli, A, Otsuka, Taka, Ratkiewicz, A, Terry, JR, Utsuno, Y, Weisshaar, D |
| Jazyk: |
angličtina |
| Rok vydání: |
2011 |
| Předmět: |
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| Popis: |
Excited states in the very neutron-rich nuclei 35 Mg and 33 Na were populated in the fragmentation of a 38 Si projectile beam on a Be target at 83 MeV / u beam energy. We report on the first observation of γ -ray transitions in 35 Mg, the odd- N neighbor of 34 Mg and 36 Mg, which are known to be part of the ‘island of inversion” around N = 20. The results are discussed in the framework of large-scale shell-model calculations. For the A = 3 Z nucleus 33 Na, a new γ -ray transition was observed that is suggested to complete the γ -ray cascade 7 / 2 + → 5 / 2 + → 3 / 2 + gs connecting three neutron two-particle–two-hole intruder states that are predicted to form a close-to-ideal K = 3 / 2 rotational band in the strong-coupling limit. ispartof: Physical Review C, Nuclear Physics vol:83 issue:4 status: published |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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