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

J. M. Rees; E. S. Paul; J. Simpson; M. A. Riley; A. D. Ayangeakaa; M. P. Carpenter; C. J. Chiara; U. Garg; P. Hampson; D. J. Hartley; C. R. Hoffman; R. V. F. Janssens; F. G. Kondev; T. Lauritsen; P. J. R. Mason; J. Matta; S. L. Miller; P. J. Nolan; J. Ollier; M. Petri; D. C. Radford; J. P. Revill; X. Wang; S. Zhu; Jnaneswari Gellanki; Ingemar Ragnarsson

doi:10.1103/PhysRevC.91.054301

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

J. M. Rees, E. S. Paul, J. Simpson, M. A. Riley, A. D. Ayangeakaa, M. P. Carpenter, C. J. Chiara, U. Garg, P. Hampson, D. J. Hartley, C. R. Hoffman, R. V. F. Janssens, F. G. Kondev, T. Lauritsen, P. J. R. Mason, J. Matta, S. L. Miller, P. J. Nolan, J. Ollier, M. PetriD. C. Radford, J. P. Revill, X. Wang, S. Zhu, Jnaneswari Gellanki, Ingemar Ragnarsson

Mathematical Physics

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	054301
Journal	Physical Review C (Nuclear Physics)
Volume	91
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.91.054301
Publication status	Published - 2015

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

Subatomic Physics

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10.1103/PhysRevC.91.054301

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Rees, J. M., Paul, E. S., Simpson, J., Riley, M. A., Ayangeakaa, A. D., Carpenter, M. P., Chiara, C. J., Garg, U., Hampson, P., Hartley, D. J., Hoffman, C. R., Janssens, R. V. F., Kondev, F. G., Lauritsen, T., Mason, P. J. R., Matta, J., Miller, S. L., Nolan, P. J., Ollier, J., ... Ragnarsson, I. (2015). High-spin terminating states in the N=88 Ho-155 and Er-156 isotones. Physical Review C (Nuclear Physics), 91(5), [054301]. https://doi.org/10.1103/PhysRevC.91.054301

@article{6fbbe8c0268849df8be15c905afb6def,

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

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.",

author = "Rees, {J. M.} and Paul, {E. S.} and J. Simpson and Riley, {M. A.} and Ayangeakaa, {A. D.} and Carpenter, {M. P.} and Chiara, {C. J.} and U. Garg and P. Hampson and Hartley, {D. J.} and Hoffman, {C. R.} and Janssens, {R. V. F.} and Kondev, {F. G.} and T. Lauritsen and Mason, {P. J. R.} and J. Matta and Miller, {S. L.} and Nolan, {P. J.} and J. Ollier and M. Petri and Radford, {D. C.} and Revill, {J. P.} and X. Wang and S. Zhu and Jnaneswari Gellanki and Ingemar Ragnarsson",

note = "The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)",

year = "2015",

doi = "10.1103/PhysRevC.91.054301",

language = "English",

volume = "91",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "5",

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Rees, JM, Paul, ES, Simpson, J, Riley, MA, Ayangeakaa, AD, Carpenter, MP, Chiara, CJ, Garg, U, Hampson, P, Hartley, DJ, Hoffman, CR, Janssens, RVF, Kondev, FG, Lauritsen, T, Mason, PJR, Matta, J, Miller, SL, Nolan, PJ, Ollier, J, Petri, M, Radford, DC, Revill, JP, Wang, X, Zhu, S, Gellanki, J & Ragnarsson, I 2015, 'High-spin terminating states in the N=88 Ho-155 and Er-156 isotones', Physical Review C (Nuclear Physics), vol. 91, no. 5, 054301. https://doi.org/10.1103/PhysRevC.91.054301

TY - JOUR

T1 - High-spin terminating states in the N=88 Ho-155 and Er-156 isotones

AU - Rees, J. M.

AU - Paul, E. S.

AU - Simpson, J.

AU - Riley, M. A.

AU - Ayangeakaa, A. D.

AU - Carpenter, M. P.

AU - Chiara, C. J.

AU - Garg, U.

AU - Hampson, P.

AU - Hartley, D. J.

AU - Hoffman, C. R.

AU - Janssens, R. V. F.

AU - Kondev, F. G.

AU - Lauritsen, T.

AU - Mason, P. J. R.

AU - Matta, J.

AU - Miller, S. L.

AU - Nolan, P. J.

AU - Ollier, J.

AU - Petri, M.

AU - Radford, D. C.

AU - Revill, J. P.

AU - Wang, X.

AU - Zhu, S.

AU - Gellanki, Jnaneswari

AU - Ragnarsson, Ingemar

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevC.91.054301

DO - 10.1103/PhysRevC.91.054301

M3 - Article

SN - 2469-9985

VL - 91

JO - Physical Review C

JF - Physical Review C

IS - 5

M1 - 054301

ER -

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

Abstract

Bibliographical note

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