Rotational bands and neutron alignments in neutron rich odd-A cadmium isotopes

P. H. Regan; J. S. Middleton; K. R. Pohl; J. E. Bush; P. E. Raines; D. P. Balamuth; S. M. Mullins; D. Ward; A. Galindo-Uribarri; V. P. Janzen; S. Pilotte

doi:10.1103/PhysRevC.49.1885

Rotational bands and neutron alignments in neutron rich odd-A cadmium isotopes

P. H. Regan, J. S. Middleton, K. R. Pohl, J. E. Bush, P. E. Raines, D. P. Balamuth, S. M. Mullins, D. Ward, A. Galindo-Uribarri, V. P. Janzen, S. Pilotte

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19 Scopus citations

Abstract

High-spin states in Cd109,111 have been investigated with the reaction Zr96(18O,xn)114-xCd at beam energies of 60 and 70 MeV. The decoupled yrast bands observed in both nuclei are interpreted as being built upon a low-Kh11/2-quasineutron configuration. Both structures exhibit band crossings corresponding to the rotational alignment of a pair of h11/2 quasineutrons. Two positive-parity bands built on a g7/2-quasineutron configuration are observed in Cd109. These exhibit a signature inversion in the region of the first (νh11/2)2 alignment. This may be associated with some softness to triaxiality. The results are discussed in terms of the cranked shell model, total Routhian surface calculations, and the systematics of neighboring nuclei.

Original language	English
Pages (from-to)	1885-1895
Number of pages	11
Journal	Physical Review C - Nuclear Physics
Volume	49
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.49.1885
State	Published - 1994
Externally published	Yes

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title = "Rotational bands and neutron alignments in neutron rich odd-A cadmium isotopes",

abstract = "High-spin states in Cd109,111 have been investigated with the reaction Zr96(18O,xn)114-xCd at beam energies of 60 and 70 MeV. The decoupled yrast bands observed in both nuclei are interpreted as being built upon a low-Kh11/2-quasineutron configuration. Both structures exhibit band crossings corresponding to the rotational alignment of a pair of h11/2 quasineutrons. Two positive-parity bands built on a g7/2-quasineutron configuration are observed in Cd109. These exhibit a signature inversion in the region of the first (νh11/2)2 alignment. This may be associated with some softness to triaxiality. The results are discussed in terms of the cranked shell model, total Routhian surface calculations, and the systematics of neighboring nuclei.",

author = "Regan, {P. H.} and Middleton, {J. S.} and Pohl, {K. R.} and Bush, {J. E.} and Raines, {P. E.} and Balamuth, {D. P.} and Mullins, {S. M.} and D. Ward and A. Galindo-Uribarri and Janzen, {V. P.} and S. Pilotte",

year = "1994",

doi = "10.1103/PhysRevC.49.1885",

language = "English",

volume = "49",

pages = "1885--1895",

journal = "Physical Review C - Nuclear Physics",

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T1 - Rotational bands and neutron alignments in neutron rich odd-A cadmium isotopes

AU - Regan, P. H.

AU - Middleton, J. S.

AU - Pohl, K. R.

AU - Bush, J. E.

AU - Raines, P. E.

AU - Balamuth, D. P.

AU - Mullins, S. M.

AU - Ward, D.

AU - Galindo-Uribarri, A.

AU - Janzen, V. P.

AU - Pilotte, S.

PY - 1994

Y1 - 1994

N2 - High-spin states in Cd109,111 have been investigated with the reaction Zr96(18O,xn)114-xCd at beam energies of 60 and 70 MeV. The decoupled yrast bands observed in both nuclei are interpreted as being built upon a low-Kh11/2-quasineutron configuration. Both structures exhibit band crossings corresponding to the rotational alignment of a pair of h11/2 quasineutrons. Two positive-parity bands built on a g7/2-quasineutron configuration are observed in Cd109. These exhibit a signature inversion in the region of the first (νh11/2)2 alignment. This may be associated with some softness to triaxiality. The results are discussed in terms of the cranked shell model, total Routhian surface calculations, and the systematics of neighboring nuclei.

AB - High-spin states in Cd109,111 have been investigated with the reaction Zr96(18O,xn)114-xCd at beam energies of 60 and 70 MeV. The decoupled yrast bands observed in both nuclei are interpreted as being built upon a low-Kh11/2-quasineutron configuration. Both structures exhibit band crossings corresponding to the rotational alignment of a pair of h11/2 quasineutrons. Two positive-parity bands built on a g7/2-quasineutron configuration are observed in Cd109. These exhibit a signature inversion in the region of the first (νh11/2)2 alignment. This may be associated with some softness to triaxiality. The results are discussed in terms of the cranked shell model, total Routhian surface calculations, and the systematics of neighboring nuclei.

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DO - 10.1103/PhysRevC.49.1885

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EP - 1895

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

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ER -

Rotational bands and neutron alignments in neutron rich odd-A cadmium isotopes

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