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

Autor:	Kenichi Matsuyanagi, Kenichi Yoshida, Masayuki Yamagami
Rok vydání:	2005
Předmět:	Physics Physics and Astronomy (miscellaneous) Proton Nuclear Theory Bound state Neutron Woods–Saxon potential Nuclear drip line Atomic physics Nuclear Experiment Random phase approximation Excitation Coherence (physics)
Zdroj:	Progress of Theoretical Physics. 113:1251-1272
ISSN:	1347-4081 0033-068X
DOI:	10.1143/ptp.113.1251
Popis:	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 40 Ca region and those in 50 S. For the N = Z stable nuclei, 32 Sa nd 40 Ca, enhancement of octupole transition strengths results from the coherence of the proton and neutron excitations. Contrastingly, for 50 S 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 ah ighΩ resonance state acquires an extremely large transition strength. A similar enhancement of the octupole strength is also found in oblately deformed 40 Mg close to the neutron drip line.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::96931b89bfe3cd43200fb41ce0141153 https://doi.org/10.1143/ptp.113.1251 Zobrazit plný text záznamu