d{sub 5/2} proton hole strength in neutron-rich {sup 43}P: Shell structure and nuclear shapes near N=28

Journal Article · Tue Jul 15 00:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.011303· OSTI ID:21192004

Riley, L A; Baugher, T R; Hosier, K E ^[1]; Adrich, P; Bazin, D; Diget, C A; Weisshaar, D ^[2]; Brown, B A; Cook, J M; Gade, A; Garland, D A; Glasmacher, T; Ratkiewicz, A; Siwek, K P ^[2]; Cottle, P D; Kemper, K W ^[3]; Otsuka, T ^[4]; Rae, W D. M. ^[5]; Tostevin, J A ^[6]; Utsuno, Y ^[7]

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1. Department of Physics and Astronomy, Ursinus College, Collegeville, PA 19426 (United States)
2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824 (United States)
3. Department of Physics, Florida State University, Tallahassee, FL 32306 (United States)
4. Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 (United States)
5. Garsington, Oxfordshire, OX44 (United Kingdom)
6. Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)
7. Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)

We report on the use of the one-proton knockout reaction from {sup 44}S to determine the location of d{sub 5/2} proton strength in neutron-rich {sup 43}P. The results are used to test two shell-model frameworks with different pictures of the evolution of single-proton energies along the N=28 isotones near the neutron dripline. We observe a concentration of d{sub 5/2} proton hole strength near 1 MeV in excitation energy. This result favors the recent shell-model interaction of Utsuno et al. [Eur. Phys. J. Spec. Top. 150, 187 (2007)] and provides additional evidence for an oblate shape for {sup 42}Si.

• OSTI ID: 21192004
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 78, Issue 1; Other Information: DOI: 10.1103/PhysRevC.78.011303; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EXCITATION
INTERACTIONS
ISOTONIC NUCLEI
KNOCK-OUT REACTIONS
MEV RANGE 01-10
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR STRUCTURE
PHOSPHORUS 43
PROTONS
SHELL MODELS
SILICON 42
SULFUR 44