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Shape coexistence at high spin in the N = Z+2 nucleus Se-70

Rainovski, G ; Schnare, H ; Schwengner, R ; Plettner, C ; Kaubler, L ; Donau, F ; Ragnarsson, Ingemar LU ; Eberth, J ; Steinhardt, T and Thelen, O , et al. (2002) In Journal of Physics G: Nuclear and Particle Physics 28(10). p.2617-2625
Abstract
The nucleus Se-70 was studied using the Ca-40(Ca-40, 2alpha2p) reaction at a beam energy of 185 MeV. Gamma rays were measured with the EUROBALL III spectrometer. The known positive-parity bands have been extended and one new band of positive parity and two of negative parity have been identified. These bands are interpreted in terms of the cranked Nilsson-Strutinsky approach. Calculations suggest that the two negative-parity bands, which have the same signature, are both based on a configuration with two protons and three neutrons lifted from the fp shell to the g(9/2) orbital, but at different nuclear shapes. This represents a shape coexistence at high spin.
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics G: Nuclear and Particle Physics
volume
28
issue
10
pages
2617 - 2625
publisher
IOP Publishing
external identifiers
  • wos:000178940300009
  • scopus:0036388209
ISSN
0954-3899
DOI
10.1088/0954-3899/28/10/307
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
b42b98c7-c598-4ceb-8fa8-24ea8d9a3c23 (old id 324424)
date added to LUP
2016-04-01 16:05:24
date last changed
2022-04-22 19:31:46
@article{b42b98c7-c598-4ceb-8fa8-24ea8d9a3c23,
  abstract     = {{The nucleus Se-70 was studied using the Ca-40(Ca-40, 2alpha2p) reaction at a beam energy of 185 MeV. Gamma rays were measured with the EUROBALL III spectrometer. The known positive-parity bands have been extended and one new band of positive parity and two of negative parity have been identified. These bands are interpreted in terms of the cranked Nilsson-Strutinsky approach. Calculations suggest that the two negative-parity bands, which have the same signature, are both based on a configuration with two protons and three neutrons lifted from the fp shell to the g(9/2) orbital, but at different nuclear shapes. This represents a shape coexistence at high spin.}},
  author       = {{Rainovski, G and Schnare, H and Schwengner, R and Plettner, C and Kaubler, L and Donau, F and Ragnarsson, Ingemar and Eberth, J and Steinhardt, T and Thelen, O and Hausmann, M and Jungclaus, A and Lieb, KP and Muller, A and de Angelis, G and Gadea, A and Napoli, DR and Algora, A and Jenkins, DG and Wadsworth, R and Wilson, A and Andrejtscheff, W and Dimitrov, VI}},
  issn         = {{0954-3899}},
  language     = {{eng}},
  number       = {{10}},
  pages        = {{2617--2625}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Physics G: Nuclear and Particle Physics}},
  title        = {{Shape coexistence at high spin in the N = Z+2 nucleus Se-70}},
  url          = {{http://dx.doi.org/10.1088/0954-3899/28/10/307}},
  doi          = {{10.1088/0954-3899/28/10/307}},
  volume       = {{28}},
  year         = {{2002}},
}