High-spin states in the A= 39 mirror nuclei 39Ca and 39K.

Authors :: Andersson, Th.
Rudolph, D.
Baktash, C.
Eberth, J.
Fahlander, C.
Haslip, D.
LaFosse, D.R.
Paul, S.D.
Sarantites, D.G.
Svensson, C.E.
Thomas, H.G.
Waddington, J.C.
Weintraub, W.
Wilson, J.N.
Brown, B.A.
Source :: European Physical Journal A -- Hadrons & Nuclei; Sep1999, Vol. 6 Issue 1, p5-8, 4p
Publication Year :: 1999
Abstract: High-spin states of the mass A= 39 mirror pair <superscript>39</superscript>K and <superscript>39</superscript>Ca were investigated via the fusion-evaporation reaction <superscript>28</superscript>Si +<superscript>16</superscript>O at 125 MeV beam energy. The Gammasphere array in conjunction with the 4π charged-particle detector array Microball and neutron detectors was used to detect γ rays in coincidence with evaporated light particles. The results of the first high-spin study of the T<subscript>z</subscript>=−1/2 nucleus <superscript>39</superscript>Ca are discussed in terms of mirror symmetry and compared to spherical shell-model calculations in the 1 d<subscript>3/2</subscript>–; 1 f<subscript>7/2</subscript> configuration space. [ABSTRACT FROM AUTHOR]