OCTUPOLE COLLECTIVITY IN THE GROUND BAND OF ND-148

R Ibbotson; C A White; T Czosnyka; P A Butler; N Clarkson; D Cline; R A Cunningham; M Devlin; K G Helmer; T H Hoare; J R Hughes; G D Jones; A E Kavka; B Kotlinski; R J Poynter; P Regan; E G Vogt; R Wadsworth; D L Watson; C Y Wu

OCTUPOLE COLLECTIVITY IN THE GROUND BAND OF ND-148

R Ibbotson, C A White, T Czosnyka, P A Butler, N Clarkson, D Cline, R A Cunningham, M Devlin, K G Helmer, T H Hoare, J R Hughes, G D Jones, A E Kavka, B Kotlinski, R J Poynter, P Regan, E G Vogt, R Wadsworth, D L Watson, C Y Wu

Physics

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

Abstract

E3 matrix elements have been determined for transitions between states up to I(pi)=13- in Nd-148, providing direct evidence for strong octupole collectivity in a rotational band. These values, as well as the corresponding E1 and E2 matrix elements, were obtained from Coulomb excitation data using Ni-58 and Mo-92 ions, projectile excitation using a Pb-208 target, and from recoil distance lifetime measurements. The results are consistent with collective model predictions for Nd-148 assuming intrinsic quadrupole and octupole moments of Q20 almost-equal-to 400 e fm2 and Q30 almost-equal-to 1500 efm3. The E3 strength coupling the negative-parity states to the beta band is found to be appreciable.

Original language	English
Pages (from-to)	1990-1993
Number of pages	4
Journal	Physical Review Letters
Volume	71
Issue number	13
Publication status	Published - 27 Sept 1993

Keywords

NUCLEI
SHAPES
TRANSITION
MOMENTS
REGION
STATES

Cite this

Ibbotson, R., White, C. A., Czosnyka, T., Butler, P. A., Clarkson, N., Cline, D., Cunningham, R. A., Devlin, M., Helmer, K. G., Hoare, T. H., Hughes, J. R., Jones, G. D., Kavka, A. E., Kotlinski, B., Poynter, R. J., Regan, P., Vogt, E. G., Wadsworth, R., Watson, D. L., & Wu, C. Y. (1993). OCTUPOLE COLLECTIVITY IN THE GROUND BAND OF ND-148. Physical Review Letters, 71(13), 1990-1993.

@article{0c1d602a6fe84bafae09f0cb512f94a6,

title = "OCTUPOLE COLLECTIVITY IN THE GROUND BAND OF ND-148",

abstract = "E3 matrix elements have been determined for transitions between states up to I(pi)=13- in Nd-148, providing direct evidence for strong octupole collectivity in a rotational band. These values, as well as the corresponding E1 and E2 matrix elements, were obtained from Coulomb excitation data using Ni-58 and Mo-92 ions, projectile excitation using a Pb-208 target, and from recoil distance lifetime measurements. The results are consistent with collective model predictions for Nd-148 assuming intrinsic quadrupole and octupole moments of Q20 almost-equal-to 400 e fm2 and Q30 almost-equal-to 1500 efm3. The E3 strength coupling the negative-parity states to the beta band is found to be appreciable.",

keywords = "NUCLEI, SHAPES, TRANSITION, MOMENTS, REGION, STATES",

author = "R Ibbotson and White, {C A} and T Czosnyka and Butler, {P A} and N Clarkson and D Cline and Cunningham, {R A} and M Devlin and Helmer, {K G} and Hoare, {T H} and Hughes, {J R} and Jones, {G D} and Kavka, {A E} and B Kotlinski and Poynter, {R J} and P Regan and Vogt, {E G} and R Wadsworth and Watson, {D L} and Wu, {C Y}",

year = "1993",

month = sep,

day = "27",

language = "English",

volume = "71",

pages = "1990--1993",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

}

TY - JOUR

T1 - OCTUPOLE COLLECTIVITY IN THE GROUND BAND OF ND-148

AU - Ibbotson, R

AU - White, C A

AU - Czosnyka, T

AU - Butler, P A

AU - Clarkson, N

AU - Cline, D

AU - Cunningham, R A

AU - Devlin, M

AU - Helmer, K G

AU - Hoare, T H

AU - Hughes, J R

AU - Jones, G D

AU - Kavka, A E

AU - Kotlinski, B

AU - Poynter, R J

AU - Regan, P

AU - Vogt, E G

AU - Wadsworth, R

AU - Watson, D L

AU - Wu, C Y

PY - 1993/9/27

Y1 - 1993/9/27

N2 - E3 matrix elements have been determined for transitions between states up to I(pi)=13- in Nd-148, providing direct evidence for strong octupole collectivity in a rotational band. These values, as well as the corresponding E1 and E2 matrix elements, were obtained from Coulomb excitation data using Ni-58 and Mo-92 ions, projectile excitation using a Pb-208 target, and from recoil distance lifetime measurements. The results are consistent with collective model predictions for Nd-148 assuming intrinsic quadrupole and octupole moments of Q20 almost-equal-to 400 e fm2 and Q30 almost-equal-to 1500 efm3. The E3 strength coupling the negative-parity states to the beta band is found to be appreciable.

AB - E3 matrix elements have been determined for transitions between states up to I(pi)=13- in Nd-148, providing direct evidence for strong octupole collectivity in a rotational band. These values, as well as the corresponding E1 and E2 matrix elements, were obtained from Coulomb excitation data using Ni-58 and Mo-92 ions, projectile excitation using a Pb-208 target, and from recoil distance lifetime measurements. The results are consistent with collective model predictions for Nd-148 assuming intrinsic quadrupole and octupole moments of Q20 almost-equal-to 400 e fm2 and Q30 almost-equal-to 1500 efm3. The E3 strength coupling the negative-parity states to the beta band is found to be appreciable.

KW - NUCLEI

KW - SHAPES

KW - TRANSITION

KW - MOMENTS

KW - REGION

KW - STATES

M3 - Article

SN - 0031-9007

VL - 71

SP - 1990

EP - 1993

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

ER -