Shapes of the neutron-rich Kr88-94 nuclei

T Rzaca-Urban; W Urban; A Kaczor; J L Durell; M J Leddy; M A Jones; W R Phillips; A G Smith; B J Varley; I Ahmad; L R Morss; H Bentaleb; E Lubkiewicz; N Schulz

Shapes of the neutron-rich Kr88-94 nuclei

T Rzaca-Urban, W Urban, A Kaczor, J L Durell, M J Leddy, M A Jones, W R Phillips, A G Smith, B J Varley, I Ahmad, L R Morss, H Bentaleb, E Lubkiewicz, N Schulz

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

Abstract

Neutron-rich, Kr88-94 nuclei, populated in spontaneous fission of Cm-248, have been studied with EUROGAM 2, by measuring prompt gamma -rays. Many new excited states in even-even Kr isotopes have been identified. For the first time spins and parities were determined experimentally in these nuclei. Our results indicate that the quadrupole deformation of Kr isotopes will appear only above N = 58, as observed in Sr and Zr nuclei. The newly found 3(-) level at 1506.4 keV in Kr-90 suggests the exsistence of a new region of increased octupole correlations, probably associated with the v(d(5/2)h(11/2)) pair of Deltal = Deltaj = 3 orbitals.

Original language	English
Journal	European Physical Journal A
Volume	9
Issue number	2
Publication status	Published - 2000

Cite this

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title = "Shapes of the neutron-rich Kr88-94 nuclei",

abstract = "Neutron-rich, Kr88-94 nuclei, populated in spontaneous fission of Cm-248, have been studied with EUROGAM 2, by measuring prompt gamma -rays. Many new excited states in even-even Kr isotopes have been identified. For the first time spins and parities were determined experimentally in these nuclei. Our results indicate that the quadrupole deformation of Kr isotopes will appear only above N = 58, as observed in Sr and Zr nuclei. The newly found 3(-) level at 1506.4 keV in Kr-90 suggests the exsistence of a new region of increased octupole correlations, probably associated with the v(d(5/2)h(11/2)) pair of Deltal = Deltaj = 3 orbitals.",

author = "T Rzaca-Urban and W Urban and A Kaczor and Durell, {J L} and Leddy, {M J} and Jones, {M A} and Phillips, {W R} and Smith, {A G} and Varley, {B J} and I Ahmad and Morss, {L R} and H Bentaleb and E Lubkiewicz and N Schulz",

note = "Times Cited: 20",

year = "2000",

language = "English",

volume = "9",

journal = "European Physical Journal A",

issn = "1434-6001",

publisher = "Springer Nature",

number = "2",

}

TY - JOUR

T1 - Shapes of the neutron-rich Kr88-94 nuclei

AU - Rzaca-Urban, T

AU - Urban, W

AU - Kaczor, A

AU - Durell, J L

AU - Leddy, M J

AU - Jones, M A

AU - Phillips, W R

AU - Smith, A G

AU - Varley, B J

AU - Ahmad, I

AU - Morss, L R

AU - Bentaleb, H

AU - Lubkiewicz, E

AU - Schulz, N

N1 - Times Cited: 20

PY - 2000

Y1 - 2000

N2 - Neutron-rich, Kr88-94 nuclei, populated in spontaneous fission of Cm-248, have been studied with EUROGAM 2, by measuring prompt gamma -rays. Many new excited states in even-even Kr isotopes have been identified. For the first time spins and parities were determined experimentally in these nuclei. Our results indicate that the quadrupole deformation of Kr isotopes will appear only above N = 58, as observed in Sr and Zr nuclei. The newly found 3(-) level at 1506.4 keV in Kr-90 suggests the exsistence of a new region of increased octupole correlations, probably associated with the v(d(5/2)h(11/2)) pair of Deltal = Deltaj = 3 orbitals.

AB - Neutron-rich, Kr88-94 nuclei, populated in spontaneous fission of Cm-248, have been studied with EUROGAM 2, by measuring prompt gamma -rays. Many new excited states in even-even Kr isotopes have been identified. For the first time spins and parities were determined experimentally in these nuclei. Our results indicate that the quadrupole deformation of Kr isotopes will appear only above N = 58, as observed in Sr and Zr nuclei. The newly found 3(-) level at 1506.4 keV in Kr-90 suggests the exsistence of a new region of increased octupole correlations, probably associated with the v(d(5/2)h(11/2)) pair of Deltal = Deltaj = 3 orbitals.

M3 - Article

SN - 1434-6001

VL - 9

JO - European Physical Journal A

JF - European Physical Journal A

IS - 2

ER -

Shapes of the neutron-rich Kr88-94 nuclei

Abstract

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