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Global microscopic calculations of odd-odd nuclei

Ward, D. E. LU ; Carlsson, B. G. LU ; Möller, P. LU and Åberg, S. LU (2019) In Physical Review C 100(3).
Abstract

The macroscopic-microscopic finite-range droplet model is combined with a particle-rotor coupling model in order to systematically describe low-energy spectra of odd-odd nuclei. The odd proton and neutron are allowed to interact through effective nuclear forces representing the residual neutron-proton interaction. In particular, ground-state spins and parities are calculated and compared to data, where all 268 axially symmetric nuclei which have reliable spin and parity assignments in the Nubase 2016 database are considered. Using a residual neutron-proton interaction composed of both central and tensor terms the agreement with experimental ground-state spins and parities reaches 41% for spherical nuclei and 31% for deformed nuclei. The... (More)

The macroscopic-microscopic finite-range droplet model is combined with a particle-rotor coupling model in order to systematically describe low-energy spectra of odd-odd nuclei. The odd proton and neutron are allowed to interact through effective nuclear forces representing the residual neutron-proton interaction. In particular, ground-state spins and parities are calculated and compared to data, where all 268 axially symmetric nuclei which have reliable spin and parity assignments in the Nubase 2016 database are considered. Using a residual neutron-proton interaction composed of both central and tensor terms the agreement with experimental ground-state spins and parities reaches 41% for spherical nuclei and 31% for deformed nuclei. The model is applied to study possible α-decay chains in superdeformed odd-odd nuclei, and Qα values are calculated considering favored decay-paths as compared to ground-state paths.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
100
issue
3
publisher
American Physical Society
external identifiers
  • scopus:85072646626
ISSN
2469-9985
DOI
10.1103/PhysRevC.100.034301
language
English
LU publication?
yes
id
b26444ef-49a4-441d-b4d8-382f35dc2810
date added to LUP
2019-10-04 12:27:52
date last changed
2019-10-23 06:23:47
@article{b26444ef-49a4-441d-b4d8-382f35dc2810,
  abstract     = {<p>The macroscopic-microscopic finite-range droplet model is combined with a particle-rotor coupling model in order to systematically describe low-energy spectra of odd-odd nuclei. The odd proton and neutron are allowed to interact through effective nuclear forces representing the residual neutron-proton interaction. In particular, ground-state spins and parities are calculated and compared to data, where all 268 axially symmetric nuclei which have reliable spin and parity assignments in the Nubase 2016 database are considered. Using a residual neutron-proton interaction composed of both central and tensor terms the agreement with experimental ground-state spins and parities reaches 41% for spherical nuclei and 31% for deformed nuclei. The model is applied to study possible α-decay chains in superdeformed odd-odd nuclei, and Qα values are calculated considering favored decay-paths as compared to ground-state paths.</p>},
  articleno    = {034301},
  author       = {Ward, D. E. and Carlsson, B. G. and Möller, P. and Åberg, S.},
  issn         = {2469-9985},
  language     = {eng},
  month        = {09},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review C},
  title        = {Global microscopic calculations of odd-odd nuclei},
  url          = {http://dx.doi.org/10.1103/PhysRevC.100.034301},
  volume       = {100},
  year         = {2019},
}