Ionization and dissociation energies of HD and dipole-induced g/u -symmetry breaking

N. Hölsch; I. Doran; F. Merkt; J. Hussels; C. F. Cheng; E. J. Salumbides; H. L. Bethlem; K. S.E. Eikema; M. Beyer; W. Ubachs; Ch Jungen

doi:10.1103/PhysRevA.108.022811

Ionization and dissociation energies of HD and dipole-induced g/u -symmetry breaking

N. Hölsch
, I. Doran
, F. Merkt
, J. Hussels
, C. F. Cheng
, E. J. Salumbides
, H. L. Bethlem
, K. S.E. Eikema
, M. Beyer
, W. Ubachs
, Ch Jungen

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

Abstract

The ionization energy of HD has been determined to be EI(HD)=124568.48466(7)cm-1 by two-photon Doppler-free vacuum-ultraviolet pulsed laser spectroscopy, near-infrared continuous-wave laser spectroscopy, and Rydberg-series extrapolation by multichannel quantum-defect theory (MQDT). From this value, the dissociation energy of HD is deduced to be D0(HD)=36405.78253(7)cm-1, representing a fivefold improvement over previous values and resolving a 3.2σ disagreement with ab initio calculations of the four-particle nonadiabatic relativistic energy and of quantum-electrodynamic corrections up to order mα6. Interactions between d, f, and g Rydberg series have been observed and had to be included in the MQDT extrapolation of the Rydberg series.

Original language	English
Article number	022811
Pages (from-to)	1-12
Number of pages	12
Journal	Physical Review A
Volume	108
Issue number	2
Early online date	22 Aug 2023
DOIs	https://doi.org/10.1103/PhysRevA.108.022811
Publication status	Published - Aug 2023

Bibliographical note

Funding Information:
The authors thank M. Silkowski and K. Pachucki (Warsaw) for making available further potential-energy curves for excited states of hydrogen prior to publication. K.S.E.E., F.M., and W.U. acknowledge financial support from European Research Council advanced grants under the European Union's Horizon 2020 research and innovation program (Grants No. 695677, No. 743121, and No. 670168). H.L.B., K.S.E.E., and W.U. acknowledge NWO for a program grant on “The mysterious size of the proton.” F.M. acknowledges financial support from the Swiss National Science Foundation (Project No. 200020B-200478 and Sinergia Grant No. CRSII5-183579). M.B. acknowledges NWO for a VENI grant (Grant No. VI.Veni.202.140).

Publisher Copyright:
© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Funding

The authors thank M. Silkowski and K. Pachucki (Warsaw) for making available further potential-energy curves for excited states of hydrogen prior to publication. K.S.E.E., F.M., and W.U. acknowledge financial support from European Research Council advanced grants under the European Union's Horizon 2020 research and innovation program (Grants No. 695677, No. 743121, and No. 670168). H.L.B., K.S.E.E., and W.U. acknowledge NWO for a program grant on “The mysterious size of the proton.” F.M. acknowledges financial support from the Swiss National Science Foundation (Project No. 200020B-200478 and Sinergia Grant No. CRSII5-183579). M.B. acknowledges NWO for a VENI grant (Grant No. VI.Veni.202.140).

Funders	Funder number
European Research Council
Horizon 2020	695677, 670168
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	200020B-200478, CRSII5-183579
Horizon 2020 Framework Programme	743121
NWO	VI.Veni.202.140

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title = "Ionization and dissociation energies of HD and dipole-induced g/u -symmetry breaking",

abstract = "The ionization energy of HD has been determined to be EI(HD)=124568.48466(7)cm-1 by two-photon Doppler-free vacuum-ultraviolet pulsed laser spectroscopy, near-infrared continuous-wave laser spectroscopy, and Rydberg-series extrapolation by multichannel quantum-defect theory (MQDT). From this value, the dissociation energy of HD is deduced to be D0(HD)=36405.78253(7)cm-1, representing a fivefold improvement over previous values and resolving a 3.2σ disagreement with ab initio calculations of the four-particle nonadiabatic relativistic energy and of quantum-electrodynamic corrections up to order mα6. Interactions between d, f, and g Rydberg series have been observed and had to be included in the MQDT extrapolation of the Rydberg series.",

author = "N. H{\"o}lsch and I. Doran and F. Merkt and J. Hussels and Cheng, \{C. F.\} and Salumbides, \{E. J.\} and Bethlem, \{H. L.\} and Eikema, \{K. S.E.\} and M. Beyer and W. Ubachs and Ch Jungen",

note = "Funding Information: The authors thank M. Silkowski and K. Pachucki (Warsaw) for making available further potential-energy curves for excited states of hydrogen prior to publication. K.S.E.E., F.M., and W.U. acknowledge financial support from European Research Council advanced grants under the European Union's Horizon 2020 research and innovation program (Grants No. 695677, No. 743121, and No. 670168). H.L.B., K.S.E.E., and W.U. acknowledge NWO for a program grant on “The mysterious size of the proton.” F.M. acknowledges financial support from the Swiss National Science Foundation (Project No. 200020B-200478 and Sinergia Grant No. CRSII5-183579). M.B. acknowledges NWO for a VENI grant (Grant No. VI.Veni.202.140). Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

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AU - Hölsch, N.

AU - Doran, I.

AU - Merkt, F.

AU - Hussels, J.

AU - Cheng, C. F.

AU - Salumbides, E. J.

AU - Bethlem, H. L.

AU - Eikema, K. S.E.

AU - Beyer, M.

AU - Ubachs, W.

AU - Jungen, Ch

N1 - Funding Information: The authors thank M. Silkowski and K. Pachucki (Warsaw) for making available further potential-energy curves for excited states of hydrogen prior to publication. K.S.E.E., F.M., and W.U. acknowledge financial support from European Research Council advanced grants under the European Union's Horizon 2020 research and innovation program (Grants No. 695677, No. 743121, and No. 670168). H.L.B., K.S.E.E., and W.U. acknowledge NWO for a program grant on “The mysterious size of the proton.” F.M. acknowledges financial support from the Swiss National Science Foundation (Project No. 200020B-200478 and Sinergia Grant No. CRSII5-183579). M.B. acknowledges NWO for a VENI grant (Grant No. VI.Veni.202.140). Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2023/8

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N2 - The ionization energy of HD has been determined to be EI(HD)=124568.48466(7)cm-1 by two-photon Doppler-free vacuum-ultraviolet pulsed laser spectroscopy, near-infrared continuous-wave laser spectroscopy, and Rydberg-series extrapolation by multichannel quantum-defect theory (MQDT). From this value, the dissociation energy of HD is deduced to be D0(HD)=36405.78253(7)cm-1, representing a fivefold improvement over previous values and resolving a 3.2σ disagreement with ab initio calculations of the four-particle nonadiabatic relativistic energy and of quantum-electrodynamic corrections up to order mα6. Interactions between d, f, and g Rydberg series have been observed and had to be included in the MQDT extrapolation of the Rydberg series.

AB - The ionization energy of HD has been determined to be EI(HD)=124568.48466(7)cm-1 by two-photon Doppler-free vacuum-ultraviolet pulsed laser spectroscopy, near-infrared continuous-wave laser spectroscopy, and Rydberg-series extrapolation by multichannel quantum-defect theory (MQDT). From this value, the dissociation energy of HD is deduced to be D0(HD)=36405.78253(7)cm-1, representing a fivefold improvement over previous values and resolving a 3.2σ disagreement with ab initio calculations of the four-particle nonadiabatic relativistic energy and of quantum-electrodynamic corrections up to order mα6. Interactions between d, f, and g Rydberg series have been observed and had to be included in the MQDT extrapolation of the Rydberg series.

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JF - Physical Review A

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ER -

Ionization and dissociation energies of HD and dipole-induced g/u -symmetry breaking

Abstract

Bibliographical note

Funding

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