Nuclear charge radii and electromagnetic moments of radioactive scandium isotopes and isomers

M. Avgoulea, Yu P. Gangrsky, K. P. Marinova, S. G. Zemlyanoi, S. Fritzsche, D. Iablonskyi, C. Barbieri, E. C. Simpson, P. D. Stevenson, J. Billowes, P. Campbell, B. Cheal, B. Tordoff, M. L. Bissell, D. H. Forest, M. D. Gardner, G. Tungate, J. Huikari, A. Nieminen, H. PenttiläJ. Äystö

研究成果: Article

28 引用 (Scopus)

抜粋

Collinear laser spectroscopy experiments with the Sc+ transition 3d4s 3D2 → 3d4p 3F3 at λ = 363.1 nm were performed on the 42-46Sc isotopic chain using an ion guide isotope separator with a cooler-buncher. Nuclear magnetic dipole and electric quadrupolemoments aswell as isotope shifts were determined from the hyperfine structure for five ground states and two isomers. Extensive multiconfigurational Dirac-Fock calculations were performed in order to evaluate the specific mass-shift, MSMS, and field-shift, F, parameters which allowed evaluation of the charge radii trend of the Sc isotopic sequence. The charge radii obtained show systematics more like the Ti radii, which increase towards the neutron shell closure N = 20, than the symmetric parabolic curve for Ca. The changes in mean-square charge radii of the isomeric states relative to the ground states for 44Sc and 45Sc were also extracted. The charge radii difference between the ground and isomeric states of 45Sc is in agreement with the deformation effect estimated from the B(E2) measurements but is smaller than the deformation extracted from the spectroscopic quadrupole moments.

元の言語English
記事番号025104
ジャーナルJournal of Physics G: Nuclear and Particle Physics
38
発行部数2
DOI
出版物ステータスPublished - 2011 2

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

フィンガープリント Nuclear charge radii and electromagnetic moments of radioactive scandium isotopes and isomers' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Avgoulea, M., Gangrsky, Y. P., Marinova, K. P., Zemlyanoi, S. G., Fritzsche, S., Iablonskyi, D., Barbieri, C., Simpson, E. C., Stevenson, P. D., Billowes, J., Campbell, P., Cheal, B., Tordoff, B., Bissell, M. L., Forest, D. H., Gardner, M. D., Tungate, G., Huikari, J., Nieminen, A., ... Äystö, J. (2011). Nuclear charge radii and electromagnetic moments of radioactive scandium isotopes and isomers. Journal of Physics G: Nuclear and Particle Physics, 38(2), [025104]. https://doi.org/10.1088/0954-3899/38/2/025104