Proton decay following the transfer reaction <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mo>(</mo></mrow><mrow><mn>7</mn></mrow></msup></mrow><mi mathvariant="normal">Li</mi><mo>,</mo><mrow><msup><mrow><mi></mi></mrow><mrow><mn>6</mn></mrow></msup></mrow><mi mathvariant="normal">He</mi><mo>)</mo></math> on <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>40</mn></mrow></msup></mrow><mi mathvariant="normal">Ca</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>90</mn></mrow></msup></mrow><mi mathvariant="normal">Zr</mi></math>

G. H. Yoo; G. M. Crawley; J. H. Kelley; N. A. Orr; J. C. Staško; J. S. Winfield; S. Galès; S. Fortier; H. Laurent; T. Suomijärvi; J. E. Finck

doi:10.1103/PhysRevC.62.044604

Proton decay following the transfer reaction $(^{7} Li,^{6} He)$ on $^{40} Ca$ and $^{90} Zr$

G. H. Yoo, G. M. Crawley, J. H. Kelley, N. A. Orr, J. C. Staško, J. S. Winfield, S. Galès, S. Fortier, H. Laurent, T. Suomijärvi, and J. E. Finck

Phys. Rev. C 62, 044604 – Published 1 September 2000

Abstract

The charged particle decay of continuum states excited by the single proton stripping reaction $(^{7} {L i,}^{6} He)$ at a bombarding energy of 50 MeV/nucleon on targets of $^{40} Ca$ and $^{90} Zr$ was measured and compared with theoretical predictions. The results suggest that most of the strength in the continuum arises from decay of unbound states in the intermediate nucleus rather than from breakup of the $^{7} Li$ projectile. There is substantial direct decay to the low-lying states in the final nucleus for both targets.

Received 7 December 1999

DOI:https://doi.org/10.1103/PhysRevC.62.044604

Authors & Affiliations

G. H. Yoo^*, G. M. Crawley^†, J. H. Kelley^‡, N. A. Orr^§, J. C. Staško^¶, and J. S. Winfield^∥

National Superconducting Cyclotron Laboratory and Department of Physics & Astronomy, Michigan State University, East Lansing, Michigan 48824

S. Galès, S. Fortier, H. Laurent, and T. Suomijärvi

Institut de Physique Nucléaire, CNRS-IN2P3, F-91406 Orsay, France

J. E. Finck

Physics Department, Central Michigan University, Mt. Pleasant, Michigan 48859

^*Present address: Department of Electrical Engineering, Dae Bul University, Sam-Ho Myun, Young-Arm Kun, South Korea.
^†Present address: College of Science and Mathematics, University of South Carolina, Columbia, SC 29208.
^‡Present address: Department of Physics, Duke University, Durham, NC 27708.
^§Present address: Laboratoire de Physique Corpusculaire, IN2P3-CNRS, ISMRA et Université de Caen, 14050 Caen cedex, France.
^∥Present address: Advanced Power Source Technology, Ford Motor Company, Dearborn, MI 48121.
^¶Present address: Laboratori Nazionali del Sud–INFN, via S. Sofia, 44-95123 Catania, Italy.

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Vol. 62, Iss. 4 — October 2000

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