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Spin Assignments of the B12 0.95-, 1.67-, and 2.62-MeV Levels

L. F. Chase, Jr.* and R. E. McDonald

William W. True*

E. K. Warburton

  • Lockheed Palo Alto Research Laboratory, Palo Alto, California

  • University of California, Davis, California

  • Brookhaven National Laboratory, Upton, New York

  • *Work performed in part while at Brookhaven National Laboratory.
  • Work performed in part while at Lockheed Palo Alto Research Laboratory.

Phys. Rev. 166, 997 – Published 20 February, 1968

DOI: https://doi.org/10.1103/PhysRev.166.997

Abstract

γγ angular correlations were performed on the B12 1.67 → 0.95 → 0 and 2.62 → 0.95 → 0 cascades following formation of the initial states via the B11(d, p)B12 reaction. Deuteron energies of 1.70 and 3.13 MeV, respectively, were used. The results, when combined with previous information, lead to spin-parity assignments of 2+, 2, and 1 for the B12 0.95-, 1.67-, and 2.62-MeV levels. Some information on the γ-ray decay modes of these states was obtained. This information is in good accord with previously reported work. B11+d yield curves were obtained for the production of 0.95- and 1.67-MeV γ rays and for the coincidence rate between these two γ rays for deuteron energies between 0.55 and 3.05 MeV. Yield curves for production of the B12 0.95-, 1.67-, and 2.62-MeV levels were constructed from these γ-ray yield curves.

References (18)

  1. F. Ajzenberg-Selove and T. Lauritsen, Nucl. Phys. 11, 1 (1959) F. Ajzenberg-SeloveT. LauritsenNuclear Data Sheets, compiled by K. Way (U. S. Government Printing Office, National Academy of Sciences—National Research Council, Washington, D. C., 1962)
  2. R. E. Segel, S. S. Hanna, and R. G. Allas, Phys. Rev. 139, B818 (1965)
  3. E. K. Warburton and H. J. Rose, Phys. Rev. 109, 1199 (1958)
  4. A. E. Litherland and A. J. Ferguson, Can. J. Phys. 39, 788 (1961) A. J. Ferguson, Angular Correlation Methods in Gamma-Ray Spectroscopy (North-Holland Publishing Co., Amsterdam, 1965)
  5. J. W. Olness and E. K. Warburton, following paper, Phys. Rev. 166, 1004 (1968)
  6. E. K. Warburton and L. F. Chase, Jr., Phys. Rev. 132, 2273 (1963)
  7. A. Gallmann, F. Hibou, P. Fintz, P. E. Hodgson, and E. K. Warburton, Phys. Rev. 138, B560 (1965)
  8. M. J. Throop, Bull. Am. Phys. Soc. 12, 484 (1967)
  9. A. P. Borden and R. C. Ritters, Phys. Rev. 159, 875 (1967)
  10. S. Gorodetzky, A. Gallmann, P. Fintz, and G. Bassompierre, J. Phys. Radium 22, 573 (1961)
  11. L. F. Chase, Jr., W. W. True, and E. K. Warburton, Bull. Am. Phys. Soc. 9, 56 (1964)
  12. D. W. Mingay, thesis, University of the Witwaterstrand, Johannesburg, South Africa, 1964 (unpublished) J. P. F. Sellschop (private communication)
  13. D. J. Pullen, D. H. Wilkinson, and A. B. Whitehead, in Proceedings of the Rutherford Jubilee International Conference, Manchester, edited by J. B. Birks (Academic Press Inc., New York, 1961), p. 565 D. J. Pullen, thesis, Oxford University, 1963 (unpublished)
  14. C. Broude and H. E. Gove, Ann. Phys. (N. Y.) 23, 71 (1963)
  15. Omitted endnote

  16. [11]
  17. H. J. Rose and D. M. Brink, Rev. Mod. Phys. 39, 306 (1967)
  18. F. Beck, Ann. Phys. (Paris) 1, 503 (1966)

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