One-Neutron Removal Measurement Reveals {sup 24}O as a New Doubly Magic Nucleus
Journal Article
·
· Physical Review Letters
- Astronomy and Physics Department, Saint Mary's University, Halifax, NS B3H 3C3 (Canada)
- GSI Helmholtzzentrum fuer Schwerionenforschung, D-64291 Darmstadt (Germany)
- Justus-Liebig University, 35392 Giessen (Germany)
- Universidad de Santiago de Compostela, E-15706 Santiago de Compostella (Spain)
The first measurement of the momentum distribution for one-neutron removal from {sup 24}O at 920A MeV performed at GSI, Darmstadt is reported. The observed distribution has a width (FWHM) of 99{+-}4 MeV/c in the projectile rest frame and a one-neutron removal cross section of 63{+-}7 mb. The results are well explained with a nearly pure 2s{sub 1/2} neutron spectroscopic factor of 1.74{+-}0.19 within the eikonal model. This large s-wave probability shows a spherical shell closure thereby confirming earlier suggestions that {sup 24}O is a new doubly magic nucleus.
- OSTI ID:
- 21180378
- Journal Information:
- Physical Review Letters, Vol. 102, Issue 15; Other Information: DOI: 10.1103/PhysRevLett.102.152501; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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