Nuclear moments and isotope shifts of La 135 , La 137 , and La 138 by collinear laser spectroscopy Academic Article uri icon

abstract

  • The isotope shifts and hyperfine-structure-splitting constants of the [Formula presented] and [Formula presented] transitions of [Formula presented] have been measured by collinear laser-ion-beam spectroscopy for the accelerator-produced isotopes [Formula presented] and [Formula presented], and for the naturally occurring isotopes [Formula presented] and [Formula presented]. The magnetic moments of the ground states of the isotopes [Formula presented] and [Formula presented] have been determined to be [Formula Presented] and [Formula Presented], respectively, and the quadrupole moments to be [Formula Presented]. The ratio of the magnetic dipole coupling constants [Formula Presented] of the level [Formula presented] has shown a [Formula Presented] hyperfine anomaly with respect to the NMR ratio of the nuclear [Formula Presented] factors. The change in the mean-square nuclear charge radius determined from the isotope shift between [Formula presented] and [Formula presented] is [Formula Presented]. This value is smaller than the predictions made by the finite-range droplet model or by the Hartree-Fock plus BCS calculation. © 2003 The American Physical Society.

author list (cited authors)

  • Iimura, H., Koizumi, M., Miyabe, M., Oba, M., Shibata, T., Shinohara, N., ... Schuessler, H. A.

citation count

  • 12

publication date

  • November 2003