Magnetic octupole moment of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Yb</mml:mi><mml:mprescripts /><mml:none /><mml:mn>173</mml:mn></mml:mmultiscripts></mml:math>
 using collinear laser spectroscopy

Groote, R. P. de; Kujanpää, S.; Koszorús, Á.; Li, Ji‐Guang; Moore, Iain

doi:10.1103/physreva.103.032826

Cited by 15 publications

(3 citation statements)

References 45 publications

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“…Improving the resolution and precision of these techniques can provide access to higher-order terms of the nuclear distribution, e.g. the fourth power of the nuclear charge radius [18,22,23], and high-order moments of the nuclear charge distribution [24]. Furthermore, precision isotope shift measurements have been proposed as a viable route to constrain the existence of possible new forces and particles [25].…”

Section: Introductionmentioning

confidence: 99%

Modelling of transient interference phenomena in collinear laser spectroscopy

Jovanović¹,

Ruiz²

2022

Preprint

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Collinear laser spectroscopy of fast atomic beams has been established as one of the main tools to perform precision experiments with atoms containing short-lived nuclei. Although highly sensitive, the spectral resolution of these techniques is typically limited to several MHz. Here, we study the use of transient interference phenomena to potentially improve the experimental resolution. Previous attempts to implement Ramsey-type measurements with fast beams were limited by the lack of understanding of the observed line shapes. By using a simple model, we provide a satisfactory description of the previously observed line shapes, and propose alternative experimental schemes to improve the resolution in fast ion-beam experiments.

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Section: Introductionmentioning

confidence: 99%

Modelling of transient interference phenomena in collinear laser spectroscopy

Jovanović¹,

Ruiz²

2022

Preprint

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“…To this end, we modified the HFS92 code [10] to allow for the computation of the magnetic octupole hyperfine interaction and to deal with the Bohr-Weisskopf effect [11], using atomic electronic wave functions calculated with the GRASP2018 package [12]. Applying this new code, we made successful attempts to resolve the nuclear magnetic octupole moment puzzle in 173 Yb [13,14]. In the present paper, we show another application targeting the re-evaluation of the 209 Bi nuclear magnetic octupole moment.…”

Section: Introductionmentioning

confidence: 99%

Re-Evaluation of the Nuclear Magnetic Octupole Moment of 209Bi

Gaigalas

Bieroń

et al. 2022

Atoms

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We modified the Hfs92 code of the GRASP package in order to describe the magnetic octupole hyperfine interaction. To illustrate the utility of the modified code, we carried out state-of-the-art calculations of the electronic factors of the magnetic octupole hyperfine interaction constants for levels in the ground configuration of the Bi atom. The nuclear magnetic octupole moment of the 209Bi isotope was extracted by combining old measurements of the hyperfine structures of 6p34S3/2o [Hull, R.; Brink, G. Phys. Rev. A 1970, 1, 685] and 2P3/2o [Landman, D.A.; Lurio, A. Phys. Rev. A 1970, 1, 1330] using the atomic-beam magnetic-resonance technique with our theoretical electronic factors. The present extracted octupole moment was consistent with all the available values but the one obtained in the single-particle nuclear shell model approximation. This observation supports the previous finding that nuclear many-body effects, such as the core polarization, significantly contribute to the nuclear magnetic octupole moment in the case of 209Bi.

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“…Although the magnetic dipole and electric quadrupole HFS constants of the first low-lying states of Ra + were measured and calculated, the magnetic octupole HFS constants and nuclear magnetic octupole moment Ω of Ra + have not been explored yet. With the advent of modern spectroscopic technologies, the hyperfine splitting of 133 Cs [22], 137 Ba + [23], and 171 Yb [24,25] were measured precisely, from which the contributions from magnetic octupole interactions were extracted, and the nuclear octupole moment Ω were determined by combining with the theoretical HFS constant C. Thus, it is also very interesting to perform a systematic investigation of magnetic octupole HFS constants of Ra + isotopes.…”

Section: Introductionmentioning

confidence: 99%

Ab initio calculations of the hyperfine structure of Ra⁺ and evaluations of the electric quadrupole moment Q of the ^{209,211,221,223}Ra nuclei

Li¹,

Youqi²,

Qiao³

et al. 2021

J. Phys. B: At. Mol. Opt. Phys.

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The relativistic coupled-cluster method has been employed to calculate the energies, magnetic dipole, electric quadrupole and magnetic octupole hyperfine-structure constants of the low-lying states of Ra + . The validity of our calculations is substantiated by comparing the calculated binding energies and magnetic dipole hyperfine-structure constants with the corresponding available experimental results. The combination of our theoretical results with the available experimental values of the electric quadrupole hyperfine-structure constant, makes it possible to extract the electric quadrupole moments Q of the 209,211,221,223 Ra nuclei. Our Q( 221 Ra) = 1.968(34) and Q( 223 Ra) = 1.248( 22) are consistent with the referenced values 1.978(106) and 1.254(66) from a semi-empirical analysis (1988 Z. Phys. D 11 105), but Q( 211 Ra) = 0.33(2) is smaller than the referenced value 0.48(4) by about 30%. Furthermore, we also performed a procedure for assessing the contributions of magnetic octupole hyperfine interaction to the hyperfine splitting considering the preliminary value of magnetic octupole moment from the single-particle nuclear structure model. The sensitivity of hyperfine-structure interval measurements in 223 Ra + that can reveal the effect caused by the nuclear octupole moment are found to be on the order of kHz.

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Magnetic octupole moment of Yb173 using collinear laser spectroscopy

Cited by 15 publications

References 45 publications

Modelling of transient interference phenomena in collinear laser spectroscopy

Modelling of transient interference phenomena in collinear laser spectroscopy

Re-Evaluation of the Nuclear Magnetic Octupole Moment of 209Bi

Ab initio calculations of the hyperfine structure of Ra⁺ and evaluations of the electric quadrupole moment Q of the ^{209,211,221,223}Ra nuclei

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Magnetic octupole moment of Yb173 using collinear laser spectroscopy

Cited by 15 publications

References 45 publications

Modelling of transient interference phenomena in collinear laser spectroscopy

Modelling of transient interference phenomena in collinear laser spectroscopy

Re-Evaluation of the Nuclear Magnetic Octupole Moment of 209Bi

Ab initio calculations of the hyperfine structure of Ra+ and evaluations of the electric quadrupole moment Q of the 209,211,221,223Ra nuclei

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Ab initio calculations of the hyperfine structure of Ra⁺ and evaluations of the electric quadrupole moment Q of the ^{209,211,221,223}Ra nuclei