Advanced

Coulomb excitation of Mg-31

Seidlitz, M.; Muecher, D.; Reiter, P.; Bildstein, V.; Blazhev, A.; Bree, N.; Bruyneel, B.; Cederkäll, Joakim LU ; Clement, E. and Davinson, T., et al. (2011) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 700(3-4). p.181-186
Abstract
The ground state properties of Mg-31 indicate a change of nuclear shape at N = 19 with a deformed J(pi) = 1/2(+) intruder state as a ground state, implying that Mg-31 is part of the "island of inversion". The collective properties of excited states were the subject of a Coulomb excitation experiment at REX-ISOLDE, CERN, employing a radioactive Mg-31 beam. De-excitation gamma-rays were detected by the MINIBALL gamma-spectrometer in coincidence with scattered particles in a segmented Si-detector. The level scheme of Mg-3I was extended. Spin and parity assignment of the 945 keV state yielded 5/2(+) and its de-excitation is dominated by a strong collective M1 transition. Comparison of the transition probabilities of Mg-30,Mg-31,Mg-32... (More)
The ground state properties of Mg-31 indicate a change of nuclear shape at N = 19 with a deformed J(pi) = 1/2(+) intruder state as a ground state, implying that Mg-31 is part of the "island of inversion". The collective properties of excited states were the subject of a Coulomb excitation experiment at REX-ISOLDE, CERN, employing a radioactive Mg-31 beam. De-excitation gamma-rays were detected by the MINIBALL gamma-spectrometer in coincidence with scattered particles in a segmented Si-detector. The level scheme of Mg-3I was extended. Spin and parity assignment of the 945 keV state yielded 5/2(+) and its de-excitation is dominated by a strong collective M1 transition. Comparison of the transition probabilities of Mg-30,Mg-31,Mg-32 establishes that for the N = 19 magnesium isotope not only the ground state but also excited states are largely dominated by a deformed pf intruder configuration. (C) 2011 Elsevier B.V. All rights reserved. (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
keywords
Coulomb excitation, ISOL, Reduced transition matrix element, Island of, inversion
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
700
issue
3-4
pages
181 - 186
publisher
Elsevier
external identifiers
  • wos:000292586400003
  • scopus:79960174382
ISSN
0370-2693
DOI
10.1016/j.physletb.2011.05.009
language
English
LU publication?
yes
id
05901a1b-65c6-4b36-9cfe-8d6b8f6b9ca3 (old id 2246264)
date added to LUP
2011-12-22 12:45:58
date last changed
2017-09-24 04:07:09
@article{05901a1b-65c6-4b36-9cfe-8d6b8f6b9ca3,
  abstract     = {The ground state properties of Mg-31 indicate a change of nuclear shape at N = 19 with a deformed J(pi) = 1/2(+) intruder state as a ground state, implying that Mg-31 is part of the "island of inversion". The collective properties of excited states were the subject of a Coulomb excitation experiment at REX-ISOLDE, CERN, employing a radioactive Mg-31 beam. De-excitation gamma-rays were detected by the MINIBALL gamma-spectrometer in coincidence with scattered particles in a segmented Si-detector. The level scheme of Mg-3I was extended. Spin and parity assignment of the 945 keV state yielded 5/2(+) and its de-excitation is dominated by a strong collective M1 transition. Comparison of the transition probabilities of Mg-30,Mg-31,Mg-32 establishes that for the N = 19 magnesium isotope not only the ground state but also excited states are largely dominated by a deformed pf intruder configuration. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Seidlitz, M. and Muecher, D. and Reiter, P. and Bildstein, V. and Blazhev, A. and Bree, N. and Bruyneel, B. and Cederkäll, Joakim and Clement, E. and Davinson, T. and Van Duppen, P. and Ekström, Andreas and Finke, F. and Fraile, L. M. and Geibel, K. and Gernhaeuser, R. and Hess, H. and Holler, A. and Huyse, M. and Ivanov, O. and Jolie, J. and Kalkuehler, M. and Kotthaus, T. and Kruecken, R. and Lutter, R. and Piselli, E. and Scheit, H. and Stefanescu, I. and de Walle, J. Van and Voulot, D. and Warr, N. and Wenander, F. and Wiens, A.},
  issn         = {0370-2693},
  keyword      = {Coulomb excitation,ISOL,Reduced transition matrix element,Island of,inversion},
  language     = {eng},
  number       = {3-4},
  pages        = {181--186},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Coulomb excitation of Mg-31},
  url          = {http://dx.doi.org/10.1016/j.physletb.2011.05.009},
  volume       = {700},
  year         = {2011},
}