Octupole correlations in neutron-rich, even-even barium isotopes

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

Octupole correlations in neutron-rich, even-even barium isotopes

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

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

Abstract

A = 140-148 even-even barium nuclei produced in the spontaneous fission of 248Cm were studied using the EUROGAM2 array. Spins and parities of excited levels have been firmly established from triple-γ angular correlation and direction-polarization correlation measurements. Known band structures have been extended and new bands were found. Band-crossing phenomena have been studied, which suggest termination of an alternating-parity band by particle alignment in 146Ba. The new data for 148Ba confirm predictions of a local decrease of electric dipole moment in 146Ba.

Original language	English
Pages (from-to)	107-131
Number of pages	24
Journal	Nuclear Physics A
Volume	613
Issue number	1-2
Publication status	Published - 27 Jan 1997

Keywords

140,142,144,146,148Ba deduced levels, J, π, band structure, B(λ) ratios
Measured γγγ-coin, linear polarization Eγ, Iγ, DCO ratios
Radioactivity 248Cm(SF)

Cite this

@article{8a2e2ad6ecb041e992a1e14bebaefbb6,

title = "Octupole correlations in neutron-rich, even-even barium isotopes",

abstract = "A = 140-148 even-even barium nuclei produced in the spontaneous fission of 248Cm were studied using the EUROGAM2 array. Spins and parities of excited levels have been firmly established from triple-γ angular correlation and direction-polarization correlation measurements. Known band structures have been extended and new bands were found. Band-crossing phenomena have been studied, which suggest termination of an alternating-parity band by particle alignment in 146Ba. The new data for 148Ba confirm predictions of a local decrease of electric dipole moment in 146Ba.",

keywords = "140,142,144,146,148Ba deduced levels, J, π, band structure, B(λ) ratios, Measured γγγ-coin, linear polarization Eγ, Iγ, DCO ratios, Radioactivity 248Cm(SF)",

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

year = "1997",

month = jan,

day = "27",

language = "English",

volume = "613",

pages = "107--131",

journal = "Nuclear Physics A",

publisher = "Elsevier BV",

number = "1-2",

}

TY - JOUR

T1 - Octupole correlations in neutron-rich, even-even barium isotopes

AU - Urban, W.

AU - Jones, M. A.

AU - Durell, J. L.

AU - Leddy, M.

AU - Phillips, W. R.

AU - Smith, A. G.

AU - Varley, B. J.

AU - Ahmad, I.

AU - Morss, L. R.

AU - Bentaleb, M.

AU - Lubkiewicz, E.

AU - Schulz, N.

PY - 1997/1/27

Y1 - 1997/1/27

N2 - A = 140-148 even-even barium nuclei produced in the spontaneous fission of 248Cm were studied using the EUROGAM2 array. Spins and parities of excited levels have been firmly established from triple-γ angular correlation and direction-polarization correlation measurements. Known band structures have been extended and new bands were found. Band-crossing phenomena have been studied, which suggest termination of an alternating-parity band by particle alignment in 146Ba. The new data for 148Ba confirm predictions of a local decrease of electric dipole moment in 146Ba.

AB - A = 140-148 even-even barium nuclei produced in the spontaneous fission of 248Cm were studied using the EUROGAM2 array. Spins and parities of excited levels have been firmly established from triple-γ angular correlation and direction-polarization correlation measurements. Known band structures have been extended and new bands were found. Band-crossing phenomena have been studied, which suggest termination of an alternating-parity band by particle alignment in 146Ba. The new data for 148Ba confirm predictions of a local decrease of electric dipole moment in 146Ba.

KW - 140,142,144,146,148Ba deduced levels, J, π, band structure, B(λ) ratios

KW - Measured γγγ-coin, linear polarization Eγ, Iγ, DCO ratios

KW - Radioactivity 248Cm(SF)

M3 - Article

VL - 613

SP - 107

EP - 131

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-2

ER -

Octupole correlations in neutron-rich, even-even barium isotopes

Abstract

Keywords

Fingerprint

Cite this