Rotational bands in the semi-magic nucleus Ni-57(28)29

D. Rudolph; I. Ragnarsson; W. Reviol; C. Andreoiu; M. A. Bentley; M. P. Carpenter; R. J. Charity; R. M. Clark; M. Cromaz; J. Ekman; C. Fahlander; P. Fallon; E. Ideguchi; A. O. Macchiavelli; M. N. Mineva; D. G. Sarantites; D. Seweryniak; S. J. Williams

doi:10.1088/0954-3899/37/7/075105

Rotational bands in the semi-magic nucleus Ni-57(28)29

D. Rudolph, I. Ragnarsson, W. Reviol, C. Andreoiu, M. A. Bentley, M. P. Carpenter, R. J. Charity, R. M. Clark, M. Cromaz, J. Ekman, C. Fahlander, P. Fallon, E. Ideguchi, A. O. Macchiavelli, M. N. Mineva, D. G. Sarantites, D. Seweryniak, S. J. Williams

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

Abstract

Two rotational bands have been identified and characterized in the proton-magic N = Z + 1 nucleus Ni-57. These bands complete the systematics of well-and superdeformed rotational bands in the light nickel isotopes starting from doubly magic Ni-56 to Ni-60. High-spin states in Ni-57 have been produced in the fusion-evaporation reaction Si-28(S-32, 2p1n)Ni-57 and studied with the gamma-ray detection array GAMMASPHERE operated in conjunction with detectors for evaporated light charged particles and neutrons. The features of the rotational bands in Ni-57 are compared to those of neighbouring isotopes and interpreted by means of configuration-dependent cranked Nilsson-Strutinsky calculations. The two observed high-spin bands are considered signature partners and assigned to configurations with one 1g(9/2) proton and one 1g(9/2) neutron, resulting in an unambiguous understanding of the energetically favoured signature alpha = -1/2 band but a somewhat less satisfactory description of the signature alpha = +1/2 band.

Original language	English
Article number	075105
Number of pages	13
Journal	Journal of physics g-Nuclear and particle physics
Volume	37
Issue number	7
DOIs	https://doi.org/10.1088/0954-3899/37/7/075105
Publication status	Published - Jul 2010

Keywords

GAMMA-RAY SPECTROSCOPY
HIGH-SPIN
NI-56
SHELL
DECAY
GAMMASPHERE
COINCIDENCE

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Rudolph, D., Ragnarsson, I., Reviol, W., Andreoiu, C., Bentley, M. A., Carpenter, M. P., Charity, R. J., Clark, R. M., Cromaz, M., Ekman, J., Fahlander, C., Fallon, P., Ideguchi, E., Macchiavelli, A. O., Mineva, M. N., Sarantites, D. G., Seweryniak, D., & Williams, S. J. (2010). Rotational bands in the semi-magic nucleus Ni-57(28)29. Journal of physics g-Nuclear and particle physics, 37(7), Article 075105. https://doi.org/10.1088/0954-3899/37/7/075105

@article{1b3840d6bc7240e2b401913324c67d8b,

title = "Rotational bands in the semi-magic nucleus Ni-57(28)29",

abstract = "Two rotational bands have been identified and characterized in the proton-magic N = Z + 1 nucleus Ni-57. These bands complete the systematics of well-and superdeformed rotational bands in the light nickel isotopes starting from doubly magic Ni-56 to Ni-60. High-spin states in Ni-57 have been produced in the fusion-evaporation reaction Si-28(S-32, 2p1n)Ni-57 and studied with the gamma-ray detection array GAMMASPHERE operated in conjunction with detectors for evaporated light charged particles and neutrons. The features of the rotational bands in Ni-57 are compared to those of neighbouring isotopes and interpreted by means of configuration-dependent cranked Nilsson-Strutinsky calculations. The two observed high-spin bands are considered signature partners and assigned to configurations with one 1g(9/2) proton and one 1g(9/2) neutron, resulting in an unambiguous understanding of the energetically favoured signature alpha = -1/2 band but a somewhat less satisfactory description of the signature alpha = +1/2 band.",

keywords = "GAMMA-RAY SPECTROSCOPY, HIGH-SPIN, NI-56, SHELL, DECAY, GAMMASPHERE, COINCIDENCE",

author = "D. Rudolph and I. Ragnarsson and W. Reviol and C. Andreoiu and Bentley, {M. A.} and Carpenter, {M. P.} and Charity, {R. J.} and Clark, {R. M.} and M. Cromaz and J. Ekman and C. Fahlander and P. Fallon and E. Ideguchi and Macchiavelli, {A. O.} and Mineva, {M. N.} and Sarantites, {D. G.} and D. Seweryniak and Williams, {S. J.}",

year = "2010",

month = jul,

doi = "10.1088/0954-3899/37/7/075105",

language = "English",

volume = "37",

journal = "Journal of physics g-Nuclear and particle physics",

issn = "0954-3899",

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Rudolph, D, Ragnarsson, I, Reviol, W, Andreoiu, C, Bentley, MA, Carpenter, MP, Charity, RJ, Clark, RM, Cromaz, M, Ekman, J, Fahlander, C, Fallon, P, Ideguchi, E, Macchiavelli, AO, Mineva, MN, Sarantites, DG, Seweryniak, D & Williams, SJ 2010, 'Rotational bands in the semi-magic nucleus Ni-57(28)29', Journal of physics g-Nuclear and particle physics, vol. 37, no. 7, 075105. https://doi.org/10.1088/0954-3899/37/7/075105

TY - JOUR

T1 - Rotational bands in the semi-magic nucleus Ni-57(28)29

AU - Rudolph, D.

AU - Ragnarsson, I.

AU - Reviol, W.

AU - Andreoiu, C.

AU - Bentley, M. A.

AU - Carpenter, M. P.

AU - Charity, R. J.

AU - Clark, R. M.

AU - Cromaz, M.

AU - Ekman, J.

AU - Fahlander, C.

AU - Fallon, P.

AU - Ideguchi, E.

AU - Macchiavelli, A. O.

AU - Mineva, M. N.

AU - Sarantites, D. G.

AU - Seweryniak, D.

AU - Williams, S. J.

PY - 2010/7

Y1 - 2010/7

N2 - Two rotational bands have been identified and characterized in the proton-magic N = Z + 1 nucleus Ni-57. These bands complete the systematics of well-and superdeformed rotational bands in the light nickel isotopes starting from doubly magic Ni-56 to Ni-60. High-spin states in Ni-57 have been produced in the fusion-evaporation reaction Si-28(S-32, 2p1n)Ni-57 and studied with the gamma-ray detection array GAMMASPHERE operated in conjunction with detectors for evaporated light charged particles and neutrons. The features of the rotational bands in Ni-57 are compared to those of neighbouring isotopes and interpreted by means of configuration-dependent cranked Nilsson-Strutinsky calculations. The two observed high-spin bands are considered signature partners and assigned to configurations with one 1g(9/2) proton and one 1g(9/2) neutron, resulting in an unambiguous understanding of the energetically favoured signature alpha = -1/2 band but a somewhat less satisfactory description of the signature alpha = +1/2 band.

AB - Two rotational bands have been identified and characterized in the proton-magic N = Z + 1 nucleus Ni-57. These bands complete the systematics of well-and superdeformed rotational bands in the light nickel isotopes starting from doubly magic Ni-56 to Ni-60. High-spin states in Ni-57 have been produced in the fusion-evaporation reaction Si-28(S-32, 2p1n)Ni-57 and studied with the gamma-ray detection array GAMMASPHERE operated in conjunction with detectors for evaporated light charged particles and neutrons. The features of the rotational bands in Ni-57 are compared to those of neighbouring isotopes and interpreted by means of configuration-dependent cranked Nilsson-Strutinsky calculations. The two observed high-spin bands are considered signature partners and assigned to configurations with one 1g(9/2) proton and one 1g(9/2) neutron, resulting in an unambiguous understanding of the energetically favoured signature alpha = -1/2 band but a somewhat less satisfactory description of the signature alpha = +1/2 band.

KW - GAMMA-RAY SPECTROSCOPY

KW - HIGH-SPIN

KW - NI-56

KW - SHELL

KW - DECAY

KW - GAMMASPHERE

KW - COINCIDENCE

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U2 - 10.1088/0954-3899/37/7/075105

DO - 10.1088/0954-3899/37/7/075105

M3 - Article

SN - 0954-3899

VL - 37

JO - Journal of physics g-Nuclear and particle physics

JF - Journal of physics g-Nuclear and particle physics

IS - 7

M1 - 075105

ER -

Rotational bands in the semi-magic nucleus Ni-57(28)29

Abstract

Keywords

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