Advanced

Proton and Neutron g9/2 Alignments in the N=46 Isotones 86Zr and 87Nb

Weiszflog, M.; Billowes, J.; Eberth, J.; Gross, C. J.; Kabadiyski, M. K.; Lieb, K. P.; Mylaeus, T. and Rudolph, Dirk LU (1995) In Nuclear Physics, Section A 584(1). p.133-148
Abstract
The magnetic moments of the 8(+) yrast state in Zr-86 and the 17/2(-) and 21/2(+) yrast states in Nb-87 have been measured via the IMPAD technique, The nuclei were produced in the Ni-58(S-32,Xp) reaction; the time-integral Larmor precessions were measured after recoil implantation into a polarised Fe foil. The g-factors are used to deduce the character of the g(9/2) Shell alignments within the states and their structures are interpreted with the shell model in the (g(9/2),p(1/2)) single-particle space, using the Gross-Frenkel two-body matrix elements. A survey on the various alignment schemes in these neutron-deficient isotopes is given. We find that neutron-pair alignment is favoured for even-parity states in the near-spherical nuclei... (More)
The magnetic moments of the 8(+) yrast state in Zr-86 and the 17/2(-) and 21/2(+) yrast states in Nb-87 have been measured via the IMPAD technique, The nuclei were produced in the Ni-58(S-32,Xp) reaction; the time-integral Larmor precessions were measured after recoil implantation into a polarised Fe foil. The g-factors are used to deduce the character of the g(9/2) Shell alignments within the states and their structures are interpreted with the shell model in the (g(9/2),p(1/2)) single-particle space, using the Gross-Frenkel two-body matrix elements. A survey on the various alignment schemes in these neutron-deficient isotopes is given. We find that neutron-pair alignment is favoured for even-parity states in the near-spherical nuclei with N greater than or equal to 46 but a major component of the odd-parity 17/2(1)(-) state arises from the alignment of a neutron-proton pair in the g(9/2) shell coupled to an unpaired neutron in the p(1/2) shell. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nuclear Physics, Section A
volume
584
issue
1
pages
133 - 148
publisher
Elsevier
external identifiers
  • scopus:4244118555
ISSN
0375-9474
DOI
10.1016/0375-9474(94)00530-Z
language
English
LU publication?
no
id
d5c6edf2-6660-4e47-b2db-e77b57485e57 (old id 3964809)
alternative location
http://www.sciencedirect.com/science/article/pii/037594749400530Z
date added to LUP
2013-08-13 18:55:43
date last changed
2017-01-01 06:59:20
@article{d5c6edf2-6660-4e47-b2db-e77b57485e57,
  abstract     = {The magnetic moments of the 8(+) yrast state in Zr-86 and the 17/2(-) and 21/2(+) yrast states in Nb-87 have been measured via the IMPAD technique, The nuclei were produced in the Ni-58(S-32,Xp) reaction; the time-integral Larmor precessions were measured after recoil implantation into a polarised Fe foil. The g-factors are used to deduce the character of the g(9/2) Shell alignments within the states and their structures are interpreted with the shell model in the (g(9/2),p(1/2)) single-particle space, using the Gross-Frenkel two-body matrix elements. A survey on the various alignment schemes in these neutron-deficient isotopes is given. We find that neutron-pair alignment is favoured for even-parity states in the near-spherical nuclei with N greater than or equal to 46 but a major component of the odd-parity 17/2(1)(-) state arises from the alignment of a neutron-proton pair in the g(9/2) shell coupled to an unpaired neutron in the p(1/2) shell.},
  author       = {Weiszflog, M. and Billowes, J. and Eberth, J. and Gross, C. J. and Kabadiyski, M. K. and Lieb, K. P. and Mylaeus, T. and Rudolph, Dirk},
  issn         = {0375-9474},
  language     = {eng},
  number       = {1},
  pages        = {133--148},
  publisher    = {Elsevier},
  series       = {Nuclear Physics, Section A},
  title        = {Proton and Neutron g9/2 Alignments in the N=46 Isotones 86Zr and 87Nb},
  url          = {http://dx.doi.org/10.1016/0375-9474(94)00530-Z},
  volume       = {584},
  year         = {1995},
}