Investigation of high-K states in No-252 - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review C Year : 2012

Investigation of high-K states in No-252

M. Girod
  • Function : Author
J. Ljungvall
D. Ackermann
S. Antalic
  • Function : Author
A. Goorgen
  • Function : Author
P. T. Greenlees
  • Function : Author
K. Hauschild
R. D. Herzberg
  • Function : Author
F. P. Hessberger
  • Function : Author
U. Jakobsson
  • Function : Author
P. Jones
  • Function : Author
R. Julin
  • Function : Author
S. Juutinen
  • Function : Author
S. Ketelhut
  • Function : Author
M. Leino
  • Function : Author
A. Lopez-Martens
M. Nyman
  • Function : Author
J. Pakarinen
  • Function : Author
P. Papadakis
  • Function : Author
E. Parr
  • Function : Author
P. Peura
  • Function : Author
J. Piot
P. Rahkila
  • Function : Author
D. Rostron
  • Function : Author
P. Ruotsalainen
J. Saren
  • Function : Author
C. Scholey
  • Function : Author
J. Sorri
  • Function : Author
J. Uusitalo
  • Function : Author
M. Venhart
  • Function : Author
M. Zielinska
  • Function : Author

Abstract

In this paper we investigate the rotational band built upon a two-quasiparticle 8(-) isomeric state of No-252 up to spin I-pi = 22(-). The excited states of the band were populated with the Pb-206(Ca-48, 2n) fusion-evaporation reaction. An unambiguous assignment of the structure of the 8(-) isomer as a 7/2(+)[624](nu) circle times 9/2(-)[734](nu) configuration has been made on the basis of purely experimental data. Comparisons with triaxial self-consistent Hartree-Fock-Bogoliubov calculations using the D1S force and breaking time-reversal as well as z-signature symmetries are performed. These predictions are in agreement with present measurements. Mean-field calculations extended to similar states in Fm-250 support the interpretation of the same two-neutron quasiparticle structure as the bandhead in both N = 150 isotones.

Dates and versions

in2p3-00773540 , version 1 (15-01-2013)

Identifiers

Cite

B. Sulignano, C. Theisen, J. P. Delaroche, M. Girod, J. Ljungvall, et al.. Investigation of high-K states in No-252. Physical Review C, 2012, 86, pp.044318. ⟨10.1103/PhysRevC.86.044318⟩. ⟨in2p3-00773540⟩
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