Elsevier

Nuclear Physics A

Volume 466, Issue 2, 4 May 1987, Pages 280-294
Nuclear Physics A

Investigation of 41Sc by proton capture in 40Ca

https://doi.org/10.1016/0375-9474(87)90442-8Get rights and content

Abstract

Resonance strengths, excitation energies and γ-ray branching ratios have been measured of twenty 40Ca(p, γ)41Sc resonances observed in the Ep = 640–3500 keV region. The reaction Q-value is determined as Q = 1085.07 ± 0.09 keV. A previously not reported 41Sc level is found at Ex = 3.01 MeV; it is the missing mirror state of 41Ca(3.05 MeV).

Gamma-ray angular distributions, measured at three selected resonances, lead to the assignments Jπ = 32+, 72+ and 72 to the Ex = 2.10, 3.70 and 4.03 MeV levels, respectively. A spin Jπ = 32 is assigned to the Ex = 2.41 MeV level on the basis of transition strength arguments.

These new data allow a rather detailed comparison of the mirror states of 41Ca and 41Sc. Shell-model calculations are performed for the A = 38–42 mass region, based on a (2s121d32)-(1f722p32) configuration space with up to three (four for A = 40) particles excited from the sd to the fp shell. Both positive- and negative-parity states are considered. Excitation energies and transition strengths of A = 41, T = 12 nuclei are calculated and compared to the experimental data.

References (19)

  • P.M. Endt et al.

    Nucl. Phys.

    (1978)
  • E. Koltay et al.

    Nucl. Phys.

    (1975)
  • F. Terrasi et al.

    Nucl. Phys.

    (1983)
  • J.W. Maas et al.

    Nucl. Phys.

    (1978)
  • F. Zijderhand et al.

    Nucl. Phys.

    (1986)
  • R.G. Sextro et al.

    Nucl. Phys.

    (1974)
  • B.M. Paine et al.

    Nucl. Phys.

    (1979)
  • P.M. Endt

    At. Data and Nucl. Data Tables

    (1979)
  • J.J.A. Smit et al.

    Nucl. Phys.

    (1982)
There are more references available in the full text version of this article.

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