Isotope shift and hyperfine structure of the transition5d6s 2 2 D 3/2-5d6s6p 4 F 3/2 of Lu175 and Lu176

Zimmermann, Dieter R.; Zimmermann, Peter; Aepfelbach, G.; Kuhnert, A.

doi:10.1007/bf01412940

Cited by 18 publications

(3 citation statements)

References 12 publications

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“…This was extracted by Zimmermann et al [9] from the isotope shift in the LuI transitions from 5d6s 2 , quoted by King to be "remarkably small" [28], is at variance with our present value of hr 2 i 175;176 = 0:041 (5) fm 2 . This is neither caused by a measuring error nor by a principal inconsistency of the evaluation procedures.…”

supporting

confidence: 75%

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Laser spectroscopy investigation of the nuclear moments and radii of lutetium isotopes

Georg

Borchers

Keim

et al. 1998

EPJ A

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Collinear laser spectroscopy experiments in the LuI transition 5d6s were performed on all lutetium isotopes in the range of 161 179 Lu. The nuclear spins, magnetic moments and quadrupole moments were determined from the hyperfine structures observed for 19 ground states and 11 isomers. Variations in the mean square charge radii as a function of neutron number were obtained from the isotope shifts. These data considerably extend the systematics of the properties of nuclei in the upper rare-earth region. A particular feature is the appearance of high-spin and low-spin ground states and isomeric states in the vicinity of the stable 175 Lu, partly arising from aligned neutron pairs. The present results clearly show that the deformation properties are nearly independent of the occupancy and the coupling of single-particle states. Theoretical predictions of deformation are confirmed in a consistent description of the measured radii and quadrupole moments. For all observed states, the spins and magnetic moments allow the assignment of rather pure Nilsson configurations.

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confidence: 75%

“…Moreover, they provide valuable complementary information on the nuclear mean square charge radii which is obtained from the isotope (isomer) shifts. Previously, optical isotope shift measurements had been restricted to the naturally occuring isotopes 175 Lu and 176 Lu [9,10].…”

Section: Introductionmentioning

confidence: 99%

Laser spectroscopy investigation of the nuclear moments and radii of lutetium isotopes

Georg

Borchers

Keim

et al. 1998

EPJ A

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“…The | (0)| 2 in equation ( 4) represents the non-relativistic change in electron density at the nucleus between lower and upper states of the optical transition and f (Z) is a relativistic atomic factor tabulated in [24][25][26]. The electron density, | (0)| 2 ns is for a single ns electron and β is a factor accounting for the screening of inner closed-shell electrons from the nuclear charge by the valence electrons.…”

Section: Isotope Shiftsmentioning

confidence: 99%

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

Avgoulea¹,

Gangrsky²,

Marinova³

et al. 2011

J. Phys. G: Nucl. Part. Phys.

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Abstract. Collinear laser spectroscopy experiments with the Sc + transition 3d4s 3 D 2 → 3d4p 3 F 3 at λ = 363.1 nm were performed on the 42−46 Sc isotopic chain using an ion guide isotope separator with a cooler-buncher. Nuclear magnetic dipole and electric quadrupole moments as well as isotope shifts were determined from the hyperfine structure for five ground states and two isomers. Extensive multi-configurational Dirac-Fock calculations were performed in order to evaluate the specific mass-shift, M SMS , 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 44 Sc and 45 Sc were also extracted. The charge radii difference between the ground and isomeric states of 45 Sc 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.

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Nuclear Data Sheets for A = 176

Browne

Junde

1998

Nuclear Data Sheets

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Isotope shift and hyperfine structure of the transition5d6s 2 2 D 3/2-5d6s6p 4 F 3/2 of Lu175 and Lu176

Abstract: Using a tunable single mode dye laser the isotope shift of the 573.7 nm-line between the isotopes Lu 17s and Lu 176 has been determined to be IS(176-175, 573.7nm)= -394 (5)MHz yielding a change of mean square nuclear radii of cS(r 2) =0.022 (5)

Cited by 18 publications

References 12 publications

Laser spectroscopy investigation of the nuclear moments and radii of lutetium isotopes

Laser spectroscopy investigation of the nuclear moments and radii of lutetium isotopes

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

Nuclear Data Sheets for A = 176

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