Second minimum lifetime measurements in Nd133 and Nd137

S. M. Mullins; I. Jenkins; Y. J. He; A. J. Kirwan; P. J. Nolan; J. R. Hughes; R. Wadsworth; R. A. Wyss

doi:10.1103/PhysRevC.45.2683

Second minimum lifetime measurements in Nd133 and Nd137

S. M. Mullins^*, I. Jenkins, Y. J. He, A. J. Kirwan, P. J. Nolan, J. R. Hughes, R. Wadsworth, R. A. Wyss

^*Corresponding author for this work

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

Abstract

The quadrupole moments (Q0) of the highly deformed, second minimum bands in Nd133 and Nd137 have been extracted from mean lifetime measurements using the Doppler shift attenuation method. The reactions Pd105(32S,2p2n)133Nd at 152 MeV and Ru104(36S,3n)137Nd at 145 MeV were used. A standard centroid shift analysis was carried out in both cases, which gave values of Q0=(6.0±0.7)e b and (4.0±0.5)e b for Nd133 and Nd137, respectively, corresponding to axial prolate deformations of 20.33 and 0.22. A line-shape analysis was also carried out for Nd133 to check against the possible effect of sidefeeding. The result was Q0=(6.7+0.7)e b, with sightly slower sidefeeding times corresponding to Qsf»5.3e b. The results are in good agreement with the predictions of total Routhian surface calculations, and are discussed in the context of other highly deformed bands in the A=130140 mass region.

Original language	English
Pages (from-to)	2683-2692
Number of pages	10
Journal	Physical Review C
Volume	45
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.45.2683
Publication status	Published - 1 Jan 1992

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@article{51fa9017939e4995a93ad8e027586054,

title = "Second minimum lifetime measurements in Nd133 and Nd137",

abstract = "The quadrupole moments (Q0) of the highly deformed, second minimum bands in Nd133 and Nd137 have been extracted from mean lifetime measurements using the Doppler shift attenuation method. The reactions Pd105(32S,2p2n)133Nd at 152 MeV and Ru104(36S,3n)137Nd at 145 MeV were used. A standard centroid shift analysis was carried out in both cases, which gave values of Q0=(6.0±0.7)e b and (4.0±0.5)e b for Nd133 and Nd137, respectively, corresponding to axial prolate deformations of 20.33 and 0.22. A line-shape analysis was also carried out for Nd133 to check against the possible effect of sidefeeding. The result was Q0=(6.7+0.7)e b, with sightly slower sidefeeding times corresponding to Qsf»5.3e b. The results are in good agreement with the predictions of total Routhian surface calculations, and are discussed in the context of other highly deformed bands in the A=130140 mass region.",

author = "Mullins, {S. M.} and I. Jenkins and He, {Y. J.} and Kirwan, {A. J.} and Nolan, {P. J.} and Hughes, {J. R.} and R. Wadsworth and Wyss, {R. A.}",

year = "1992",

month = jan,

day = "1",

doi = "10.1103/PhysRevC.45.2683",

language = "English",

volume = "45",

pages = "2683--2692",

journal = "Physical Review C",

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T1 - Second minimum lifetime measurements in Nd133 and Nd137

AU - Mullins, S. M.

AU - Jenkins, I.

AU - He, Y. J.

AU - Kirwan, A. J.

AU - Nolan, P. J.

AU - Hughes, J. R.

AU - Wadsworth, R.

AU - Wyss, R. A.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - The quadrupole moments (Q0) of the highly deformed, second minimum bands in Nd133 and Nd137 have been extracted from mean lifetime measurements using the Doppler shift attenuation method. The reactions Pd105(32S,2p2n)133Nd at 152 MeV and Ru104(36S,3n)137Nd at 145 MeV were used. A standard centroid shift analysis was carried out in both cases, which gave values of Q0=(6.0±0.7)e b and (4.0±0.5)e b for Nd133 and Nd137, respectively, corresponding to axial prolate deformations of 20.33 and 0.22. A line-shape analysis was also carried out for Nd133 to check against the possible effect of sidefeeding. The result was Q0=(6.7+0.7)e b, with sightly slower sidefeeding times corresponding to Qsf»5.3e b. The results are in good agreement with the predictions of total Routhian surface calculations, and are discussed in the context of other highly deformed bands in the A=130140 mass region.

AB - The quadrupole moments (Q0) of the highly deformed, second minimum bands in Nd133 and Nd137 have been extracted from mean lifetime measurements using the Doppler shift attenuation method. The reactions Pd105(32S,2p2n)133Nd at 152 MeV and Ru104(36S,3n)137Nd at 145 MeV were used. A standard centroid shift analysis was carried out in both cases, which gave values of Q0=(6.0±0.7)e b and (4.0±0.5)e b for Nd133 and Nd137, respectively, corresponding to axial prolate deformations of 20.33 and 0.22. A line-shape analysis was also carried out for Nd133 to check against the possible effect of sidefeeding. The result was Q0=(6.7+0.7)e b, with sightly slower sidefeeding times corresponding to Qsf»5.3e b. The results are in good agreement with the predictions of total Routhian surface calculations, and are discussed in the context of other highly deformed bands in the A=130140 mass region.

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DO - 10.1103/PhysRevC.45.2683

M3 - Article

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SN - 0556-2813

VL - 45

SP - 2683

EP - 2692

JO - Physical Review C

JF - Physical Review C

IS - 6

ER -

Second minimum lifetime measurements in Nd133 and Nd137

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