HYPERFINE-STRUCTURE AND MULTICHANNEL QUANTUM DEFECT THEORY ANALYSIS OF THE 6 S N G RYDBERG SERIES OF BARIUM

W. Vassen; W. Hogervorst

doi:10.1007/BF01384507

HYPERFINE-STRUCTURE AND MULTICHANNEL QUANTUM DEFECT THEORY ANALYSIS OF THE 6 S N G RYDBERG SERIES OF BARIUM

W. Vassen, W. Hogervorst

Atoms, Molecules, Lasers

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

High resolution laser-atomic-beam spectroscopy has been applied to study the hyperfine structure of the barium 6 sng Rydberg series for n=6-40. The singlet-triplet mixing of the two 6 sng J=4 series is deduced through a diagonalisation of the total Hamiltonian. Multichannel Quantum Defect Theory (MQDT) has been used to reproduce both experimental level energies of the 6 sng J=3,4 and 5 series and the extracted singlet-triplet mixing. The close-coupling channels of the 6 sng Rydberg series turn out to be nearly pure jj-coupled channels in contradistinction to lower l Rydberg series. Furthermore MQDT is used to analyse the observed isotope shifts and peak intensities of the 6 sng Rydberg series. © 1988 Springer-Verlag.

Original language	English
Pages (from-to)	149-161
Journal	Zeitschrift für Physik D. Atoms, Molecules and Clusters
Volume	8
Issue number	2
DOIs	https://doi.org/10.1007/BF01384507
Publication status	Published - 1988

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@article{22fe0f319c4a4ed18cba3083b762010f,

title = "HYPERFINE-STRUCTURE AND MULTICHANNEL QUANTUM DEFECT THEORY ANALYSIS OF THE 6 S N G RYDBERG SERIES OF BARIUM",

abstract = "High resolution laser-atomic-beam spectroscopy has been applied to study the hyperfine structure of the barium 6 sng Rydberg series for n=6-40. The singlet-triplet mixing of the two 6 sng J=4 series is deduced through a diagonalisation of the total Hamiltonian. Multichannel Quantum Defect Theory (MQDT) has been used to reproduce both experimental level energies of the 6 sng J=3,4 and 5 series and the extracted singlet-triplet mixing. The close-coupling channels of the 6 sng Rydberg series turn out to be nearly pure jj-coupled channels in contradistinction to lower l Rydberg series. Furthermore MQDT is used to analyse the observed isotope shifts and peak intensities of the 6 sng Rydberg series. {\textcopyright} 1988 Springer-Verlag.",

author = "W. Vassen and W. Hogervorst",

year = "1988",

doi = "10.1007/BF01384507",

language = "English",

volume = "8",

pages = "149--161",

journal = "Zeitschrift f{\"u}r Physik D. Atoms, Molecules and Clusters",

issn = "0178-7683",

publisher = "Springer Verlag",

number = "2",

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T1 - HYPERFINE-STRUCTURE AND MULTICHANNEL QUANTUM DEFECT THEORY ANALYSIS OF THE 6 S N G RYDBERG SERIES OF BARIUM

AU - Vassen, W.

AU - Hogervorst, W.

PY - 1988

Y1 - 1988

N2 - High resolution laser-atomic-beam spectroscopy has been applied to study the hyperfine structure of the barium 6 sng Rydberg series for n=6-40. The singlet-triplet mixing of the two 6 sng J=4 series is deduced through a diagonalisation of the total Hamiltonian. Multichannel Quantum Defect Theory (MQDT) has been used to reproduce both experimental level energies of the 6 sng J=3,4 and 5 series and the extracted singlet-triplet mixing. The close-coupling channels of the 6 sng Rydberg series turn out to be nearly pure jj-coupled channels in contradistinction to lower l Rydberg series. Furthermore MQDT is used to analyse the observed isotope shifts and peak intensities of the 6 sng Rydberg series. © 1988 Springer-Verlag.

AB - High resolution laser-atomic-beam spectroscopy has been applied to study the hyperfine structure of the barium 6 sng Rydberg series for n=6-40. The singlet-triplet mixing of the two 6 sng J=4 series is deduced through a diagonalisation of the total Hamiltonian. Multichannel Quantum Defect Theory (MQDT) has been used to reproduce both experimental level energies of the 6 sng J=3,4 and 5 series and the extracted singlet-triplet mixing. The close-coupling channels of the 6 sng Rydberg series turn out to be nearly pure jj-coupled channels in contradistinction to lower l Rydberg series. Furthermore MQDT is used to analyse the observed isotope shifts and peak intensities of the 6 sng Rydberg series. © 1988 Springer-Verlag.

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DO - 10.1007/BF01384507

M3 - Article

SN - 0178-7683

VL - 8

SP - 149

EP - 161

JO - Zeitschrift für Physik D. Atoms, Molecules and Clusters

JF - Zeitschrift für Physik D. Atoms, Molecules and Clusters

IS - 2

ER -

HYPERFINE-STRUCTURE AND MULTICHANNEL QUANTUM DEFECT THEORY ANALYSIS OF THE 6 S N G RYDBERG SERIES OF BARIUM

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