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High-spin terminating states in the N=88 Ho-155 and Er-156 isotones

Rees, J. M.; Paul, E. S.; Simpson, J.; Riley, M. A.; Ayangeakaa, A. D.; Carpenter, M. P.; Chiara, C. J.; Garg, U.; Hampson, P. and Hartley, D. J., et al. (2015) In Physical Review C (Nuclear Physics) 91(5).
Abstract
The Sn-124(Cl-37, 6n gamma) fusion-evaporation reaction at a bombarding energy of 180 MeV has been used to significantly extend the excitation level scheme of Ho-155(67)88. The collective rotational behavior of this nucleus breaks down above spin I similar to 30 and a fully aligned noncollective (band terminating) state has been identified at I-pi = 79/2(-). Comparison with cranked Nilsson-Strutinsky calculations also provides evidence for core-excited noncollective states at I-pi = 87/2(-) and (89/2(+)) involving particle-hole excitations across the Z = 64 shell gap. A similar core-excited state in Er-156(68)88 at I-pi = (46(+)) is also presented.
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publication status
published
subject
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Physical Review C (Nuclear Physics)
volume
91
issue
5
publisher
American Physical Society
external identifiers
  • wos:000353880500001
  • scopus:84929303553
ISSN
0556-2813
DOI
10.1103/PhysRevC.91.054301
language
English
LU publication?
yes
id
6fbbe8c0-2688-49df-8be1-5c905afb6def (old id 7432973)
date added to LUP
2015-06-24 12:58:36
date last changed
2017-01-01 05:30:05
@article{6fbbe8c0-2688-49df-8be1-5c905afb6def,
  abstract     = {The Sn-124(Cl-37, 6n gamma) fusion-evaporation reaction at a bombarding energy of 180 MeV has been used to significantly extend the excitation level scheme of Ho-155(67)88. The collective rotational behavior of this nucleus breaks down above spin I similar to 30 and a fully aligned noncollective (band terminating) state has been identified at I-pi = 79/2(-). Comparison with cranked Nilsson-Strutinsky calculations also provides evidence for core-excited noncollective states at I-pi = 87/2(-) and (89/2(+)) involving particle-hole excitations across the Z = 64 shell gap. A similar core-excited state in Er-156(68)88 at I-pi = (46(+)) is also presented.},
  articleno    = {054301},
  author       = {Rees, J. M. and Paul, E. S. and Simpson, J. and Riley, M. A. and Ayangeakaa, A. D. and Carpenter, M. P. and Chiara, C. J. and Garg, U. and Hampson, P. and Hartley, D. J. and Hoffman, C. R. and Janssens, R. V. F. and Kondev, F. G. and Lauritsen, T. and Mason, P. J. R. and Matta, J. and Miller, S. L. and Nolan, P. J. and Ollier, J. and Petri, M. and Radford, D. C. and Revill, J. P. and Wang, X. and Zhu, S. and Gellanki, Jnaneswari and Ragnarsson, Ingemar},
  issn         = {0556-2813},
  language     = {eng},
  number       = {5},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {High-spin terminating states in the N=88 Ho-155 and Er-156 isotones},
  url          = {http://dx.doi.org/10.1103/PhysRevC.91.054301},
  volume       = {91},
  year         = {2015},
}