Competing core and single particle excitations in the 21+ state in 44Ca

M. J. Taylor; N. Benczer-Koller; G. Kumbartzki; T. J. Mertzimekis; S. J.Q. Robinson; Y. Y. Sharon; L. Zamick; A. E. Stuchbery; C. Hutter; C. W. Beausang; J. J. Ressler; M. A. Caprio

doi:10.1016/S0370-2693(03)00346-0

Competing core and single particle excitations in the 2₁⁺ state in ⁴⁴Ca

M. J. Taylor^*, N. Benczer-Koller, G. Kumbartzki, T. J. Mertzimekis, S. J.Q. Robinson, Y. Y. Sharon, L. Zamick, A. E. Stuchbery, C. Hutter, C. W. Beausang, J. J. Ressler, M. A. Caprio

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

The g factor of the 2₁⁺ state in ⁴⁴Ca has been measured using the transient field technique and Coulomb excitation in inverse kinematics. A positive value of g(2₁⁺, ⁴⁴Ca) = +0.12±0.05 was deduced. The result suggests the (fp)_v⁴ configuration competes with excitations of the ⁴⁰Ca core. A simple model which considers that the wave function for the 2₁⁺ state consists of approximately equal admixtures of spherical four valence neutron configurations and a deformed core configuration accounts for the experimentally observed g factor as well as the previously measured quadrupole moment.

Original language	English
Pages (from-to)	187-192
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	559
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(03)00346-0
Publication status	Published - 1 May 2003

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Taylor, M. J., Benczer-Koller, N., Kumbartzki, G., Mertzimekis, T. J., Robinson, S. J. Q., Sharon, Y. Y., Zamick, L., Stuchbery, A. E., Hutter, C., Beausang, C. W., Ressler, J. J., & Caprio, M. A. (2003). Competing core and single particle excitations in the 2₁⁺ state in ⁴⁴Ca. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 559(3-4), 187-192. https://doi.org/10.1016/S0370-2693(03)00346-0

@article{c17257076efb479cb20db27b9ec12ccb,

title = "Competing core and single particle excitations in the 21+ state in 44Ca",

abstract = "The g factor of the 21+ state in 44Ca has been measured using the transient field technique and Coulomb excitation in inverse kinematics. A positive value of g(21+, 44Ca) = +0.12±0.05 was deduced. The result suggests the (fp)v4 configuration competes with excitations of the 40Ca core. A simple model which considers that the wave function for the 21+ state consists of approximately equal admixtures of spherical four valence neutron configurations and a deformed core configuration accounts for the experimentally observed g factor as well as the previously measured quadrupole moment.",

keywords = "Ca, Coulomb excitation, G factor, Inverse kinematics, Magnetic moment, Transient field",

author = "Taylor, {M. J.} and N. Benczer-Koller and G. Kumbartzki and Mertzimekis, {T. J.} and Robinson, {S. J.Q.} and Sharon, {Y. Y.} and L. Zamick and Stuchbery, {A. E.} and C. Hutter and Beausang, {C. W.} and Ressler, {J. J.} and Caprio, {M. A.}",

year = "2003",

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doi = "10.1016/S0370-2693(03)00346-0",

language = "English",

volume = "559",

pages = "187--192",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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Taylor, MJ, Benczer-Koller, N, Kumbartzki, G, Mertzimekis, TJ, Robinson, SJQ, Sharon, YY, Zamick, L, Stuchbery, AE, Hutter, C, Beausang, CW, Ressler, JJ & Caprio, MA 2003, 'Competing core and single particle excitations in the 2₁⁺ state in ⁴⁴Ca', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 559, no. 3-4, pp. 187-192. https://doi.org/10.1016/S0370-2693(03)00346-0

TY - JOUR

T1 - Competing core and single particle excitations in the 21+ state in 44Ca

AU - Taylor, M. J.

AU - Benczer-Koller, N.

AU - Kumbartzki, G.

AU - Mertzimekis, T. J.

AU - Robinson, S. J.Q.

AU - Sharon, Y. Y.

AU - Zamick, L.

AU - Stuchbery, A. E.

AU - Hutter, C.

AU - Beausang, C. W.

AU - Ressler, J. J.

AU - Caprio, M. A.

PY - 2003/5/1

Y1 - 2003/5/1

N2 - The g factor of the 21+ state in 44Ca has been measured using the transient field technique and Coulomb excitation in inverse kinematics. A positive value of g(21+, 44Ca) = +0.12±0.05 was deduced. The result suggests the (fp)v4 configuration competes with excitations of the 40Ca core. A simple model which considers that the wave function for the 21+ state consists of approximately equal admixtures of spherical four valence neutron configurations and a deformed core configuration accounts for the experimentally observed g factor as well as the previously measured quadrupole moment.

AB - The g factor of the 21+ state in 44Ca has been measured using the transient field technique and Coulomb excitation in inverse kinematics. A positive value of g(21+, 44Ca) = +0.12±0.05 was deduced. The result suggests the (fp)v4 configuration competes with excitations of the 40Ca core. A simple model which considers that the wave function for the 21+ state consists of approximately equal admixtures of spherical four valence neutron configurations and a deformed core configuration accounts for the experimentally observed g factor as well as the previously measured quadrupole moment.

KW - Ca

KW - Coulomb excitation

KW - G factor

KW - Inverse kinematics

KW - Magnetic moment

KW - Transient field

UR - http://www.scopus.com/inward/record.url?scp=0042636004&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(03)00346-0

DO - 10.1016/S0370-2693(03)00346-0

M3 - Article

SN - 0370-2693

VL - 559

SP - 187

EP - 192

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Competing core and single particle excitations in the 2₁⁺ state in ⁴⁴Ca

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