Perturbed alignments within an i13/2 neutron intruder band in Gd141

S. M. Mullins; A. Omar; L. Persson; D. Prévost; J. C. Waddington; H. R. Andrews; G. C. Ball; A. Galindo-Uribarri; V. P. Janzen; D. C. Radford; D. Ward; T. E. Drake; D. B. Fossan; D. Lafosse; P. Vaska; M. Waring; R. Wadsworth

doi:10.1103/PhysRevC.47.R2447

Perturbed alignments within an i13/2 neutron intruder band in Gd141

S. M. Mullins^*, A. Omar, L. Persson, D. Prévost, J. C. Waddington, H. R. Andrews, G. C. Ball, A. Galindo-Uribarri, V. P. Janzen, D. C. Radford, D. Ward, T. E. Drake, D. B. Fossan, D. Lafosse, P. Vaska, M. Waring, R. Wadsworth

^*Corresponding author for this work

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

Abstract

The nucleus Gd141 was investigated at high spins for the first time via the reactions Sn112(32S,2pn)141Gd at 155 MeV and Sn112(33S,2p2n)141Gd at 170 MeV. The methods of in-beam γ-ray spectroscopy were used to establish a number of different structures. These include a band assigned as the νi13/2[660]1/2+ intruder in the Nilsson scheme. This is the heaviest nucleus thus far in which this type of intruder band has been identified, and is the first case in which the 13/2+ bandhead has been clearly observed. Cranked shell model (CSM) calculations predict the occurrence of backbends due to h11/2 proton and h9/2 neutron band crossings. Gradual upbends are observed in the experimental alignments, which suggests the interaction strengths are stronger than those predicted by the CSM.

Original language	English
Pages (from-to)	R2447-R2451
Journal	Physical Review C
Volume	47
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.47.R2447
Publication status	Published - 1 Jan 1993

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Mullins, S. M., Omar, A., Persson, L., Prévost, D., Waddington, J. C., Andrews, H. R., Ball, G. C., Galindo-Uribarri, A., Janzen, V. P., Radford, D. C., Ward, D., Drake, T. E., Fossan, D. B., Lafosse, D., Vaska, P., Waring, M., & Wadsworth, R. (1993). Perturbed alignments within an i13/2 neutron intruder band in Gd141. Physical Review C, 47(6), R2447-R2451. https://doi.org/10.1103/PhysRevC.47.R2447

@article{a42f78d2e6134ed886ff3913ef196ffd,

title = "Perturbed alignments within an i13/2 neutron intruder band in Gd141",

abstract = "The nucleus Gd141 was investigated at high spins for the first time via the reactions Sn112(32S,2pn)141Gd at 155 MeV and Sn112(33S,2p2n)141Gd at 170 MeV. The methods of in-beam γ-ray spectroscopy were used to establish a number of different structures. These include a band assigned as the νi13/2[660]1/2+ intruder in the Nilsson scheme. This is the heaviest nucleus thus far in which this type of intruder band has been identified, and is the first case in which the 13/2+ bandhead has been clearly observed. Cranked shell model (CSM) calculations predict the occurrence of backbends due to h11/2 proton and h9/2 neutron band crossings. Gradual upbends are observed in the experimental alignments, which suggests the interaction strengths are stronger than those predicted by the CSM.",

author = "Mullins, {S. M.} and A. Omar and L. Persson and D. Pr{\'e}vost and Waddington, {J. C.} and Andrews, {H. R.} and Ball, {G. C.} and A. Galindo-Uribarri and Janzen, {V. P.} and Radford, {D. C.} and D. Ward and Drake, {T. E.} and Fossan, {D. B.} and D. Lafosse and P. Vaska and M. Waring and R. Wadsworth",

year = "1993",

month = jan,

day = "1",

doi = "10.1103/PhysRevC.47.R2447",

language = "English",

volume = "47",

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journal = "Physical Review C",

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publisher = "American Physical Society",

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Mullins, SM, Omar, A, Persson, L, Prévost, D, Waddington, JC, Andrews, HR, Ball, GC, Galindo-Uribarri, A, Janzen, VP, Radford, DC, Ward, D, Drake, TE, Fossan, DB, Lafosse, D, Vaska, P, Waring, M & Wadsworth, R 1993, 'Perturbed alignments within an i13/2 neutron intruder band in Gd141', Physical Review C, vol. 47, no. 6, pp. R2447-R2451. https://doi.org/10.1103/PhysRevC.47.R2447

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T1 - Perturbed alignments within an i13/2 neutron intruder band in Gd141

AU - Mullins, S. M.

AU - Omar, A.

AU - Persson, L.

AU - Prévost, D.

AU - Waddington, J. C.

AU - Andrews, H. R.

AU - Ball, G. C.

AU - Galindo-Uribarri, A.

AU - Janzen, V. P.

AU - Radford, D. C.

AU - Ward, D.

AU - Drake, T. E.

AU - Fossan, D. B.

AU - Lafosse, D.

AU - Vaska, P.

AU - Waring, M.

AU - Wadsworth, R.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - The nucleus Gd141 was investigated at high spins for the first time via the reactions Sn112(32S,2pn)141Gd at 155 MeV and Sn112(33S,2p2n)141Gd at 170 MeV. The methods of in-beam γ-ray spectroscopy were used to establish a number of different structures. These include a band assigned as the νi13/2[660]1/2+ intruder in the Nilsson scheme. This is the heaviest nucleus thus far in which this type of intruder band has been identified, and is the first case in which the 13/2+ bandhead has been clearly observed. Cranked shell model (CSM) calculations predict the occurrence of backbends due to h11/2 proton and h9/2 neutron band crossings. Gradual upbends are observed in the experimental alignments, which suggests the interaction strengths are stronger than those predicted by the CSM.

AB - The nucleus Gd141 was investigated at high spins for the first time via the reactions Sn112(32S,2pn)141Gd at 155 MeV and Sn112(33S,2p2n)141Gd at 170 MeV. The methods of in-beam γ-ray spectroscopy were used to establish a number of different structures. These include a band assigned as the νi13/2[660]1/2+ intruder in the Nilsson scheme. This is the heaviest nucleus thus far in which this type of intruder band has been identified, and is the first case in which the 13/2+ bandhead has been clearly observed. Cranked shell model (CSM) calculations predict the occurrence of backbends due to h11/2 proton and h9/2 neutron band crossings. Gradual upbends are observed in the experimental alignments, which suggests the interaction strengths are stronger than those predicted by the CSM.

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VL - 47

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JO - Physical Review C

JF - Physical Review C

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ER -

Perturbed alignments within an i13/2 neutron intruder band in Gd141

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