Elsevier

Nuclear Physics A

Volume 393, Issues 1–2, 24–31 January 1983, Pages 15-44
Nuclear Physics A

Study of the levels of 77,79,81,83Br with the 76,78,80,82Se(3He, d) reaction

https://doi.org/10.1016/0375-9474(83)90062-3Get rights and content

Abstract

Differential cross-section data were obtained for an incident 3He energy of 24.0 MeV for the 76,78,80,82Se(3He, d) 77,79,81,83Br reactions. Excitation energies for 42 states in 77Br, 45 states in 79Br, 30 states in 81Br, and 36 states in 83Br were measured with a magnetic spectrograph; the 82Se(3He, d) 83Br Q-value was also measured and found to be 3207.4 ± 5.6 keV. Angular distributions are compared with the predictions of the DWBA theory to determine lp values, parities, and spectroscopic factors. Assignments of lp have been made for 30 states in 77Br, 26 states in 79Br, 25 states in 81Br, and 21 states in 83Br. Spin assignments for a total of 9 states that have lp = 0 are made. Spectroscopic factors for low-lying states are compared to the predictions of intermediate-coupling model wave functions and the summed spectroscopic factors for the lp = 1, 3, and 4 states are compared to the total limit for the 2p32, 1f52, 2p12 and 1g92 shell-model orbitals.

References (31)

  • B. Singh et al.

    NDS

    (1980)
  • P.P. Urone et al.

    NDS

    (1975)
  • J.F. Lemming

    NDS

    (1975)
  • R.L. Robinson et al.

    Nucl. Phys.

    (1967)
  • R.L. Robinson et al.

    Nucl. Phys.

    (1972)
  • D.J. Horen et al.

    NDS

    (1975)
  • D.C. Kocher

    Nucl. Data Sheets

    (1975)
  • D.J. Horen

    Nucl. Data Sheets

    (1971)
  • K.R. Evans et al.

    Nucl. Phys.

    (1967)
  • L.A. Montestruque et al.

    Nucl. Phys.

    (1978)
  • A.H. Wapstra et al.

    Atom. Nucl. Data Tables

    (1977)
  • C.M. Perey et al.

    At. Nucl. Data Tables

    (1976)
  • J.M. Lohr et al.

    Nucl. Phys.

    (1974)
  • J.B. French et al.

    Nucl. Phys.

    (1961)
  • W. Scholz et al.

    Phys. Rev.

    (1968)
  • Cited by (19)

    • Nuclear Data Sheets for A = 79

      2016, Nuclear Data Sheets
    • Nuclear data sheets for A = 83

      2015, Nuclear Data Sheets
    • Gamma-ray spectroscopy in the decay of <sup>83</sup>Se to levels of <sup>83</sup>Br

      2015, Applied Radiation and Isotopes
      Citation Excerpt :

      As a result, there may be some uncertainty about the identification of the levels of 83Br and the placement of the γ rays among the levels. The only other comprehensive study of these levels was done by Zumbro et al. (1983) using the single-proton transfer reaction 82Se(3He,d); the energy uncertainty of the reaction work was typically 2 keV and so that work is not able to shed any light on the results of the previous γ ray spectroscopy studies. To improve our knowledge of the energy levels of 83Br, a new measurement of the energies and intensities of the γ rays emitted in the decay of 22-min 83gSe has been undertaken, at typically an order of magnitude higher resolution and precision than the previous studies.

    • Nuclear Data Sheets for A = 77

      2012, Nuclear Data Sheets
    • Nuclear Data Sheets for A = 81

      2008, Nuclear Data Sheets
    • Nuclear data sheets for A = 79

      2002, Nuclear Data Sheets
    View all citing articles on Scopus

    Present Address: Physics Department, Princeton University, Princeton, New Jersey 08540 and University of California, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

    ∗∗

    Present Address: Dept. Chemistry & Physics, St. Mary's College, Notre Dame, Indiana 46556, USA.

    View full text