Gamma-ray spectroscopy of Rb-79 and Sr-81

D H Smalley; R Chapman; P J Dagnall; C Finck; B Haas; M J Leddy; J C Lisle; D Prevost; H Savajols; A G Smith

Gamma-ray spectroscopy of Rb-79 and Sr-81

D H Smalley
, R Chapman
, P J Dagnall
, C Finck
, B Haas
, M J Leddy
, J C Lisle
, D Prevost
, H Savajols
, A G Smith

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

Abstract

High spin states in Rb-79 and Sr-81 were populated through the bombardment of a Ni-58 target with a Si-30 beam at 134 MeV. Gamma rays depopulating the excited states were detected using the EUROGAM phase-2 array. A band of nine transitions has been observed in Sr-81 decaying to the alpha = -1/2 sequence built on the [303] 5/2(-) Nilsson orbit. The decay schemes of several bands in both Rb-79 and Sr-81 have been extended to higher spin with angular correlation measurements providing firm spin assignments for a number of states. A fork is observed in Rb-79 after a band crossing at similar or equal to 0.72 MeV in the alpha = +1/2 sequence built on the [312]3/2(-) Nilsson orbit. A previously observed cascade of three gamma-rays in Rb-79 has been extended by the addition of ten transitions up to 16 MeV. This has been assigned as a positive parity band built on the [440]1/2(+) Nilsson orbit.

Original language	English
Journal	Nuclear Physics A
Volume	611
Issue number	1
Publication status	Published - 1996

Cite this

@article{59fef43ac1d04b84877856b1f0179762,

title = "Gamma-ray spectroscopy of Rb-79 and Sr-81",

abstract = "High spin states in Rb-79 and Sr-81 were populated through the bombardment of a Ni-58 target with a Si-30 beam at 134 MeV. Gamma rays depopulating the excited states were detected using the EUROGAM phase-2 array. A band of nine transitions has been observed in Sr-81 decaying to the alpha = -1/2 sequence built on the [303] 5/2(-) Nilsson orbit. The decay schemes of several bands in both Rb-79 and Sr-81 have been extended to higher spin with angular correlation measurements providing firm spin assignments for a number of states. A fork is observed in Rb-79 after a band crossing at similar or equal to 0.72 MeV in the alpha = +1/2 sequence built on the [312]3/2(-) Nilsson orbit. A previously observed cascade of three gamma-rays in Rb-79 has been extended by the addition of ten transitions up to 16 MeV. This has been assigned as a positive parity band built on the [440]1/2(+) Nilsson orbit.",

author = "Smalley, \{D H\} and R Chapman and Dagnall, \{P J\} and C Finck and B Haas and Leddy, \{M J\} and Lisle, \{J C\} and D Prevost and H Savajols and Smith, \{A G\}",

note = "Times Cited: 9",

year = "1996",

language = "English",

volume = "611",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier BV",

number = "1",

}

TY - JOUR

T1 - Gamma-ray spectroscopy of Rb-79 and Sr-81

AU - Smalley, D H

AU - Chapman, R

AU - Dagnall, P J

AU - Finck, C

AU - Haas, B

AU - Leddy, M J

AU - Lisle, J C

AU - Prevost, D

AU - Savajols, H

AU - Smith, A G

N1 - Times Cited: 9

PY - 1996

Y1 - 1996

N2 - High spin states in Rb-79 and Sr-81 were populated through the bombardment of a Ni-58 target with a Si-30 beam at 134 MeV. Gamma rays depopulating the excited states were detected using the EUROGAM phase-2 array. A band of nine transitions has been observed in Sr-81 decaying to the alpha = -1/2 sequence built on the [303] 5/2(-) Nilsson orbit. The decay schemes of several bands in both Rb-79 and Sr-81 have been extended to higher spin with angular correlation measurements providing firm spin assignments for a number of states. A fork is observed in Rb-79 after a band crossing at similar or equal to 0.72 MeV in the alpha = +1/2 sequence built on the [312]3/2(-) Nilsson orbit. A previously observed cascade of three gamma-rays in Rb-79 has been extended by the addition of ten transitions up to 16 MeV. This has been assigned as a positive parity band built on the [440]1/2(+) Nilsson orbit.

AB - High spin states in Rb-79 and Sr-81 were populated through the bombardment of a Ni-58 target with a Si-30 beam at 134 MeV. Gamma rays depopulating the excited states were detected using the EUROGAM phase-2 array. A band of nine transitions has been observed in Sr-81 decaying to the alpha = -1/2 sequence built on the [303] 5/2(-) Nilsson orbit. The decay schemes of several bands in both Rb-79 and Sr-81 have been extended to higher spin with angular correlation measurements providing firm spin assignments for a number of states. A fork is observed in Rb-79 after a band crossing at similar or equal to 0.72 MeV in the alpha = +1/2 sequence built on the [312]3/2(-) Nilsson orbit. A previously observed cascade of three gamma-rays in Rb-79 has been extended by the addition of ten transitions up to 16 MeV. This has been assigned as a positive parity band built on the [440]1/2(+) Nilsson orbit.

M3 - Article

SN - 0375-9474

VL - 611

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1

ER -

Gamma-ray spectroscopy of Rb-79 and Sr-81

Abstract

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