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Title: Spin-parity assignments to levels in the very-neutron-rich nucleus <sup>113</sup>Rh
Authors: Sainath, M
Venkataramaniah, K
Sood, P C
Keywords: <sup>113</sup>Rh Beta decay
Rh isotopes level systematics
<sup>113</sup>Rh levels spin parities assignments
Issue Date: Aug-2004
Publisher: CSIR
Series/Report no.: G 01 T 1/16
Abstract: Spins and parities have been assigned to the low-lying energy levels in the very neutron-rich Z=45 nucleus <sup>113</sup>Rh identified in beta decay of the exotic fission fragment <sup>113</sup>Ru. The assignments are based on the experimental <img src='/image/spc_char/beta.gif' border=0> intensities and log <i>f</i>t values, gamma energies, intensities, branchings and multi-polarities deduced from <sup>113</sup>Ru decay, taken together with the trends for the analogous levels and their comparative feedings and decays in the lighter <i>n</i>-rich Rh isotopes with <i>A</i>=105-111, and the supporting model considerations. No abrupt pattern changes are noticed for this <i>N</i>=68 nucleus lying just beyond the <i>N</i>=66 mid shell point. Whereas the low-lying positive parity level energies show very little variation or a slow decreasing trend, the negative parity level energies are seen to rise sharply with the addition of successive neutron pairs. The intruder band, having reached minimum energy in the <i>N</i>=64 isotope<sup>109</sup>Rh, appears to have a parabolic increase on either side.
Description: 553-559
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.42(08) [August 2004]

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