Advanced

High-spin spectroscopy of natural and unnatural parity states in the mirror-pair V-45/Ti-45

Bentley, MA; Chandler, C; Bednarczyk, P; Brandolini, F; Bruce, AM; Curien, D; Dorvaux, O; Ekman, Jörgen LU ; Farnea, E and Gelletly, W, et al. (2006) In Physical Review C (Nuclear Physics) 73(2: 024304).
Abstract
High-spin states in the proton-rich nucleus V-45 have been identified for the first time. A comprehensive gamma-ray decay scheme has been established following an experiment performed at the Vivitron accelerator at IReS Strasbourg by using the Euroball gamma-ray detector array coupled to the Neutron Wall and Euclides detector arrays. The natural (negative-) parity scheme is identified up to the f(7/2) band termination in addition to a positive-parity collective structure based on a d(3/2) particle-hole excitation. Comparison of this scheme with that of the mirror partner, Ti-45, has yielded detailed information on the variation of Coulomb energy as a function of excitation energy and angular momentum. This is the first time that such an... (More)
High-spin states in the proton-rich nucleus V-45 have been identified for the first time. A comprehensive gamma-ray decay scheme has been established following an experiment performed at the Vivitron accelerator at IReS Strasbourg by using the Euroball gamma-ray detector array coupled to the Neutron Wall and Euclides detector arrays. The natural (negative-) parity scheme is identified up to the f(7/2) band termination in addition to a positive-parity collective structure based on a d(3/2) particle-hole excitation. Comparison of this scheme with that of the mirror partner, Ti-45, has yielded detailed information on the variation of Coulomb energy as a function of excitation energy and angular momentum. This is the first time that such an analysis has been performed for a collective structure built on a cross-shell excitation. Comparison of the observed Coulomb energies with those predicted by large-scale shell-model calculations is presented. In this case, unusually, the calculations do not fare as well as for heavier nuclei in the shell. In addition, stark differences between the two nuclei are observed for the decay intensities of the parity-changing E1 decays that de-excite the positive-parity deformed bands. (Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
73
issue
2: 024304
publisher
American Physical Society
external identifiers
  • wos:000235669300012
  • scopus:33645466384
ISSN
0556-2813
DOI
10.1103/PhysRevC.73.024304
language
English
LU publication?
yes
id
e9b00bcd-0ec0-4c4a-8bd9-b526b8244db5 (old id 416646)
date added to LUP
2007-09-28 09:22:01
date last changed
2019-02-20 07:52:38
@article{e9b00bcd-0ec0-4c4a-8bd9-b526b8244db5,
  abstract     = {High-spin states in the proton-rich nucleus V-45 have been identified for the first time. A comprehensive gamma-ray decay scheme has been established following an experiment performed at the Vivitron accelerator at IReS Strasbourg by using the Euroball gamma-ray detector array coupled to the Neutron Wall and Euclides detector arrays. The natural (negative-) parity scheme is identified up to the f(7/2) band termination in addition to a positive-parity collective structure based on a d(3/2) particle-hole excitation. Comparison of this scheme with that of the mirror partner, Ti-45, has yielded detailed information on the variation of Coulomb energy as a function of excitation energy and angular momentum. This is the first time that such an analysis has been performed for a collective structure built on a cross-shell excitation. Comparison of the observed Coulomb energies with those predicted by large-scale shell-model calculations is presented. In this case, unusually, the calculations do not fare as well as for heavier nuclei in the shell. In addition, stark differences between the two nuclei are observed for the decay intensities of the parity-changing E1 decays that de-excite the positive-parity deformed bands.},
  author       = {Bentley, MA and Chandler, C and Bednarczyk, P and Brandolini, F and Bruce, AM and Curien, D and Dorvaux, O and Ekman, Jörgen and Farnea, E and Gelletly, W and Joss, DT and Lenzi, SM and Napoli, DR and Nyberg, J and O'Leary, CD and Williams, SJ and Warner, DD},
  issn         = {0556-2813},
  language     = {eng},
  number       = {2: 024304},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {High-spin spectroscopy of natural and unnatural parity states in the mirror-pair V-45/Ti-45},
  url          = {http://dx.doi.org/10.1103/PhysRevC.73.024304},
  volume       = {73},
  year         = {2006},
}