Shell model configurations in the 21+ state in 46Ca from a g-factor measurement

M. J. Taylor; N. Benczer-Koller; L. Bernstein; J. Cooper; K. Hiles; D. S. Judson; G. Kumbartzki; P. Maier-Komor; M. A. McMahan; T. J. Mertzimekis; L. Phair; S. J.Q. Robinson; Y. Y. Sharon; K. H. Speidel; A. E. Stuchbery; L. Zamick

doi:10.1016/j.physletb.2004.11.021

Shell model configurations in the 2₁⁺ state in ⁴⁶Ca from a g-factor measurement

M. J. Taylor^*, N. Benczer-Koller, L. Bernstein, J. Cooper, K. Hiles, D. S. Judson, G. Kumbartzki, P. Maier-Komor, M. A. McMahan, T. J. Mertzimekis, L. Phair, S. J.Q. Robinson, Y. Y. Sharon, K. H. Speidel, A. E. Stuchbery, L. Zamick

^*Corresponding author for this work

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

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Abstract

The g factor of the first excited 2₁⁺ state in ⁴⁶Ca has been remeasured with better accuracy than previously obtained, g(2₁⁺, ⁴⁶Ca) = -0.26(6). The experiment utilized the transient field technique combined with Coulomb excitation in inverse kinematics. This result was analyzed in terms of shell model plus deformed core calculations. The positive g factors of the 2 ₁⁺ states in Ca and Ca suggest that the 2₁ ⁺ state wave functions require significant particle-hole excitations of the Z = 20, N = 20 core. The new data for ⁴⁶Ca show that (fp) _ν⁶ configurations dominate near the shell closure at ⁴⁸Ca and indicate that core excitation plays a lesser role than was hitherto believed.

Original language	English
Pages (from-to)	265-272
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	605
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2004.11.021
Publication status	Published - 13 Jan 2005

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Taylor, M. J., Benczer-Koller, N., Bernstein, L., Cooper, J., Hiles, K., Judson, D. S., Kumbartzki, G., Maier-Komor, P., McMahan, M. A., Mertzimekis, T. J., Phair, L., Robinson, S. J. Q., Sharon, Y. Y., Speidel, K. H., Stuchbery, A. E., & Zamick, L. (2005). Shell model configurations in the 2₁⁺ state in ⁴⁶Ca from a g-factor measurement. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 605(3-4), 265-272. https://doi.org/10.1016/j.physletb.2004.11.021

@article{3c4683e16e804060a3269fa48a33d2a9,

title = "Shell model configurations in the 21+ state in 46Ca from a g-factor measurement",

abstract = "The g factor of the first excited 21+ state in 46Ca has been remeasured with better accuracy than previously obtained, g(21+, 46Ca) = -0.26(6). The experiment utilized the transient field technique combined with Coulomb excitation in inverse kinematics. This result was analyzed in terms of shell model plus deformed core calculations. The positive g factors of the 2 1+ states in Ca and Ca suggest that the 21 + state wave functions require significant particle-hole excitations of the Z = 20, N = 20 core. The new data for 46Ca show that (fp) ν6 configurations dominate near the shell closure at 48Ca and indicate that core excitation plays a lesser role than was hitherto believed.",

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

author = "Taylor, {M. J.} and N. Benczer-Koller and L. Bernstein and J. Cooper and K. Hiles and Judson, {D. S.} and G. Kumbartzki and P. Maier-Komor and McMahan, {M. A.} and Mertzimekis, {T. J.} and L. Phair and Robinson, {S. J.Q.} and Sharon, {Y. Y.} and Speidel, {K. H.} and Stuchbery, {A. E.} and L. Zamick",

year = "2005",

month = jan,

day = "13",

doi = "10.1016/j.physletb.2004.11.021",

language = "English",

volume = "605",

pages = "265--272",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

}

Taylor, MJ, Benczer-Koller, N, Bernstein, L, Cooper, J, Hiles, K, Judson, DS, Kumbartzki, G, Maier-Komor, P, McMahan, MA, Mertzimekis, TJ, Phair, L, Robinson, SJQ, Sharon, YY, Speidel, KH, Stuchbery, AE & Zamick, L 2005, 'Shell model configurations in the 2₁⁺ state in ⁴⁶Ca from a g-factor measurement', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 605, no. 3-4, pp. 265-272. https://doi.org/10.1016/j.physletb.2004.11.021

TY - JOUR

T1 - Shell model configurations in the 21+ state in 46Ca from a g-factor measurement

AU - Taylor, M. J.

AU - Benczer-Koller, N.

AU - Bernstein, L.

AU - Cooper, J.

AU - Hiles, K.

AU - Judson, D. S.

AU - Kumbartzki, G.

AU - Maier-Komor, P.

AU - McMahan, M. A.

AU - Mertzimekis, T. J.

AU - Phair, L.

AU - Robinson, S. J.Q.

AU - Sharon, Y. Y.

AU - Speidel, K. H.

AU - Stuchbery, A. E.

AU - Zamick, L.

PY - 2005/1/13

Y1 - 2005/1/13

N2 - The g factor of the first excited 21+ state in 46Ca has been remeasured with better accuracy than previously obtained, g(21+, 46Ca) = -0.26(6). The experiment utilized the transient field technique combined with Coulomb excitation in inverse kinematics. This result was analyzed in terms of shell model plus deformed core calculations. The positive g factors of the 2 1+ states in Ca and Ca suggest that the 21 + state wave functions require significant particle-hole excitations of the Z = 20, N = 20 core. The new data for 46Ca show that (fp) ν6 configurations dominate near the shell closure at 48Ca and indicate that core excitation plays a lesser role than was hitherto believed.

AB - The g factor of the first excited 21+ state in 46Ca has been remeasured with better accuracy than previously obtained, g(21+, 46Ca) = -0.26(6). The experiment utilized the transient field technique combined with Coulomb excitation in inverse kinematics. This result was analyzed in terms of shell model plus deformed core calculations. The positive g factors of the 2 1+ states in Ca and Ca suggest that the 21 + state wave functions require significant particle-hole excitations of the Z = 20, N = 20 core. The new data for 46Ca show that (fp) ν6 configurations dominate near the shell closure at 48Ca and indicate that core excitation plays a lesser role than was hitherto believed.

KW - Ca

KW - Coulomb excitation

KW - Inverse kinematics

KW - Magnetic moment

KW - Transient field

KW - g factor

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U2 - 10.1016/j.physletb.2004.11.021

DO - 10.1016/j.physletb.2004.11.021

M3 - Article

SN - 0370-2693

VL - 605

SP - 265

EP - 272

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 -

Shell model configurations in the 2₁⁺ state in ⁴⁶Ca from a g-factor measurement

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