2ND MINIMUM LIFETIME MEASUREMENTS IN ND-133 AND ND-137

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

2ND MINIMUM LIFETIME MEASUREMENTS IN ND-133 AND ND-137

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

Physics

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

Abstract

The quadrupole moments (Q0) of the highly deformed, second minimum bands in Nd-133 and Nd-137 have been extracted from mean lifetime measurements using the Doppler shift attenuation method. The reactions Pd-105(S-32,2p2n)Nd-133 at 152 MeV and Ru-104(S-36,3n)Nd-137 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 Nd-113 and Nd-137, respectively, corresponding to axial prolate deformations of beta-2 congruent-to 0.33 and congruent-to 0.22. A line-shape analysis was also carried out for Nd-133 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 Q(sf)BAR congruent-to 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 = 130-140 mass region.

Original language	English
Pages (from-to)	2683-2692
Number of pages	10
Journal	Physical Review C
Volume	45
Issue number	6
Publication status	Published - Jun 1992

Keywords

SUPERDEFORMED BAND
SPECTROSCOPY

Cite this

@article{645e59fb6c4d4bb48dadd9896f4f36fa,

title = "2ND MINIMUM LIFETIME MEASUREMENTS IN ND-133 AND ND-137",

abstract = "The quadrupole moments (Q0) of the highly deformed, second minimum bands in Nd-133 and Nd-137 have been extracted from mean lifetime measurements using the Doppler shift attenuation method. The reactions Pd-105(S-32,2p2n)Nd-133 at 152 MeV and Ru-104(S-36,3n)Nd-137 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 Nd-113 and Nd-137, respectively, corresponding to axial prolate deformations of beta-2 congruent-to 0.33 and congruent-to 0.22. A line-shape analysis was also carried out for Nd-133 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 Q(sf)BAR congruent-to 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 = 130-140 mass region.",

keywords = "SUPERDEFORMED BAND, SPECTROSCOPY",

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 = jun,

language = "English",

volume = "45",

pages = "2683--2692",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - 2ND MINIMUM LIFETIME MEASUREMENTS IN ND-133 AND ND-137

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 - 1992/6

Y1 - 1992/6

N2 - The quadrupole moments (Q0) of the highly deformed, second minimum bands in Nd-133 and Nd-137 have been extracted from mean lifetime measurements using the Doppler shift attenuation method. The reactions Pd-105(S-32,2p2n)Nd-133 at 152 MeV and Ru-104(S-36,3n)Nd-137 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 Nd-113 and Nd-137, respectively, corresponding to axial prolate deformations of beta-2 congruent-to 0.33 and congruent-to 0.22. A line-shape analysis was also carried out for Nd-133 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 Q(sf)BAR congruent-to 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 = 130-140 mass region.

AB - The quadrupole moments (Q0) of the highly deformed, second minimum bands in Nd-133 and Nd-137 have been extracted from mean lifetime measurements using the Doppler shift attenuation method. The reactions Pd-105(S-32,2p2n)Nd-133 at 152 MeV and Ru-104(S-36,3n)Nd-137 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 Nd-113 and Nd-137, respectively, corresponding to axial prolate deformations of beta-2 congruent-to 0.33 and congruent-to 0.22. A line-shape analysis was also carried out for Nd-133 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 Q(sf)BAR congruent-to 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 = 130-140 mass region.

KW - SUPERDEFORMED BAND

KW - SPECTROSCOPY

M3 - Article

SN - 2469-9985

VL - 45

SP - 2683

EP - 2692

JO - Physical Review C

JF - Physical Review C

IS - 6

ER -