Artículo
Breakdown of the Z=8 shell closure in unbound 12O and its mirror symmetry
Autor/es | Mukha, I.
Suzuki, D. Iwasaki, H. Beaumel, D. Nalpas, L. Pollacco, E. Assié, M. Blumenfeld, Y. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2009-10-09 |
Fecha de depósito | 2017-07-17 |
Publicado en |
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Resumen | An excited state in the proton-rich unbound nucleus 12O was identified at 1.8(4) MeV via missing-mass spectroscopy with the 14O(p,t) reaction at 51 AMeV. The spin-parity of the state was determined to be 0+ or 2+ by ... An excited state in the proton-rich unbound nucleus 12O was identified at 1.8(4) MeV via missing-mass spectroscopy with the 14O(p,t) reaction at 51 AMeV. The spin-parity of the state was determined to be 0+ or 2+ by comparing the measured differential cross sections with distorted-wave calculations. The lowered location of the excited state in 12O indicates the breakdown of the major shell closure at Z=8 near the proton drip line. This demonstrates the persistence of mirror symmetry in the disappearance of the magic number 8 between 12O and its mirror partner 12Be. |
Cita | Mukha, I., Suzuki, D., Iwasaki, H., Beaumel, D., Nalpas, L., Pollacco, E.,...,Blumenfeld, Y. (2009). Breakdown of the Z=8 shell closure in unbound 12O and its mirror symmetry. Physical Review Letters, 103 (15), 152503-1-152503-4. |
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