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Prog. Theor. Phys. Vol. 113 No. 6 (2005) pp. 1251-1272

[ Full Text PDF : FREE ACCESS (275K) ]

Comparative Study of Octupole Excitations on Superdeformed States in 32S, 36S, 40Ca and 50S

Kenichi Yoshida,1 Masayuki Yamagami2 and Kenichi Matsuyanagi1

1Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
2Heavy Ion Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan

(Received January 27, 2005)

Abstract:

By means of an RPA calculation based on the deformed Woods-Saxon potential in the coordinate-mesh representation, we make a comparative study of octupole excitations built on superdeformed states in the 40Ca region and those in 50S. For the N = Z stable nuclei, 32S and 40Ca, enhancement of octupole transition strengths results from the coherence of the proton and neutron excitations. Contrastingly, for 50S close to the neutron drip line, we find that the low-lying state created by the excitation of a single neutron from a loosely bound low Ω state to a high Ω resonance state acquires an extremely large transition strength. A similar enhancement of the octupole strength is also found in oblately deformed 40Mg close to the neutron drip line.


URL : http://ptp.ipap.jp/link?PTP/113/1251/
DOI : 10.1143/PTP.113.1251

[ Full Text PDF : FREE ACCESS (275K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 120 No. 6 (2008) pp. 1169-1192 :
    Triaxiality Dependence of Octupole Excitations on Superdeformed States in 44Ti
    Hiromichi Ogasawara, Kenichi Yoshida, Masayuki Yamagami, Shoujirou Mizutori and Kenichi Matsuyanagi
  2. Progress of Theoretical Physics Vol. 121 No. 2 (2009) pp. 357-374 :
    Rotational Frequency Dependence of Octupole Vibrations on Superdeformed States in 40Ca
    Hiromichi Ogasawara, Kenichi Yoshida, Masayuki Yamagami, Shoujirou Mizutori and Kenichi Matsuyanagi
  3. Progress of Theoretical Physics Supplement No.192 (2012) pp. 1-238 :
    Recent Developments in Nuclear Cluster Physics
    Hisashi Horiuchi, Kiyomi Ikeda and Kiyoshi Katō

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