Irregularity in ${K}^{\ensuremath{\pi}}={8}^{\ensuremath{-}}$ rotational bands of $N=150$ isotones

Irregularity in $K^{π} = 8^{-}$ rotational bands of $N = 150$ isotones

X. M. Fu, F. R. Xu, C. F. Jiao, W. Y. Liang, J. C. Pei, and H. L. Liu

Phys. Rev. C 89, 054301 – Published 2 May 2014

Abstract

Motivated by new experimental spectra in transfermium mass region, we have investigated broken-pair high- $K$ multiparticle excited states and their rotational bands for the $N = 150$ isotones around $Z = 100$ , by using the configuration-constrained pairing-deformation-frequency self-consistent total-Routhian-surface (TRS) model. In order to avoid the spurious phase transition encountered in the Bardeen-Copper-Schrieffer (BCS) pairing, the particle-number-conserving method has been employed for pairing calculations. Pairing correlations are remarkably reduced for the rotations of broken-pair multiparticle states. The present configuration-constrained TRS calculations reproduce reasonably existing experimental data. The abnormal feature in the recently observed $K^{π} = 8^{-}$ bands of ${}^{252}{No}$ and ${}^{250}{Fm}$ would be associated with configuration mixing.

Received 12 December 2013
Revised 6 April 2014

DOI:https://doi.org/10.1103/PhysRevC.89.054301

Authors & Affiliations

X. M. Fu^1,2, F. R. Xu^1,*, C. F. Jiao¹, W. Y. Liang¹, J. C. Pei¹, and H. L. Liu³

¹State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
²National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
³Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049, China

^*frxu@pku.edu.cn

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand

Issue

Vol. 89, Iss. 5 — May 2014

Reuse & Permissions

Access Options

Author publication services for translation and copyediting assistance advertisement

Physical Review C

covering nuclear physics

Irregularity in $K^{π} = 8^{-}$ rotational bands of $N = 150$ isotones

X. M. Fu, F. R. Xu, C. F. Jiao, W. Y. Liang, J. C. Pei, and H. L. Liu

Phys. Rev. C 89, 054301 – Published 2 May 2014

Abstract

Authors & Affiliations

Article Text (Subscription Required)

References (Subscription Required)

Issue

Access Options

Physical Review C

covering nuclear physics

Irregularity in Kπ=8− rotational bands of N=150 isotones

X. M. Fu, F. R. Xu, C. F. Jiao, W. Y. Liang, J. C. Pei, and H. L. Liu

Phys. Rev. C 89, 054301 – Published 2 May 2014

Abstract

Authors & Affiliations

Article Text (Subscription Required)

References (Subscription Required)

Issue

Access Options

Authorization Required

Other Options

Download & Share

Images

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Log In

Search

Article Lookup

Paste a citation or DOI

Enter a citation

Irregularity in $K^{π} = 8^{-}$ rotational bands of $N = 150$ isotones