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Title: High Spin Bands in the A {approx} 130 Nuclei: A 'Non-chiral' Explanation

Abstract

Pairs of close-lying, high-spin rotational bands with similar properties are frequently observed in the odd-odd nuclei in the A {approx} 130 nuclei region, especially in the vicinity Z {approx} 57 and N {approx} 75. New phenomenological approach based on independent additivity of both signature sequences in the involved rotational bands built on single-quasiparticle proton and neutron states in the odd-A nuclei is proposed in the aim to understood structure of both observed bands built on the two-quasiparticle states. Softness of the core is approximately taken into account. The predictions based on this approach are compared with experimental data in the case of 132La. The proposed signature selection rule explains some properties of the {gamma}-transitions between these bands.

Authors:
 [1]
  1. Andrzej Soltan Institute for Nuclear Studies, 05-400 Swierk (Poland)
Publication Date:
OSTI Identifier:
20798332
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 819; Journal Issue: 1; Conference: 12. international symposium on capture gamma-ray spectroscopy and related topics, Notre Dame, IN (United States), 4-9 Sep 2005; Other Information: DOI: 10.1063/1.2187898; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CHIRALITY; ENERGY-LEVEL TRANSITIONS; HIGH SPIN STATES; LANTHANUM 132; NEUTRONS; PROTONS; ROTATIONAL STATES; SELECTION RULES; SPIN

Citation Formats

Kaczarowski, Roscislaw. High Spin Bands in the A {approx} 130 Nuclei: A 'Non-chiral' Explanation. United States: N. p., 2006. Web. doi:10.1063/1.2187898.
Kaczarowski, Roscislaw. High Spin Bands in the A {approx} 130 Nuclei: A 'Non-chiral' Explanation. United States. doi:10.1063/1.2187898.
Kaczarowski, Roscislaw. Mon . "High Spin Bands in the A {approx} 130 Nuclei: A 'Non-chiral' Explanation". United States. doi:10.1063/1.2187898.
@article{osti_20798332,
title = {High Spin Bands in the A {approx} 130 Nuclei: A 'Non-chiral' Explanation},
author = {Kaczarowski, Roscislaw},
abstractNote = {Pairs of close-lying, high-spin rotational bands with similar properties are frequently observed in the odd-odd nuclei in the A {approx} 130 nuclei region, especially in the vicinity Z {approx} 57 and N {approx} 75. New phenomenological approach based on independent additivity of both signature sequences in the involved rotational bands built on single-quasiparticle proton and neutron states in the odd-A nuclei is proposed in the aim to understood structure of both observed bands built on the two-quasiparticle states. Softness of the core is approximately taken into account. The predictions based on this approach are compared with experimental data in the case of 132La. The proposed signature selection rule explains some properties of the {gamma}-transitions between these bands.},
doi = {10.1063/1.2187898},
journal = {AIP Conference Proceedings},
number = 1,
volume = 819,
place = {United States},
year = {Mon Mar 13 00:00:00 EST 2006},
month = {Mon Mar 13 00:00:00 EST 2006}
}
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