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The Proton Size Puzzle: Testing QED at Extreme Wavelengths

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Publications

Improved ionization and dissociation energies of the deuterium molecule

Author(s): J. Hussels, N. Hölsch, C.-F. Cheng , E. J. Salumbides , H. L. Bethlem , K. S. E. Eikema , Ch. Jungen, M. Beyer , F. Merkt , W. Ubachs
Published in: Physical Review A, Issue 105, 2022, Page(s) 022820, ISSN 2469-9926
Publisher: American Physical Society
DOI: 10.1103/physreva.105.022820

Benchmarking Theory with an Improved Measurement of the Ionization and Dissociation Energies of H2

Author(s): Nicolas Hölsch, Maximilian Beyer, Edcel J. Salumbides, K.S.E. Eikema, Wim Ubachs, Christian Jungen, Frederic Merkt
Published in: Physical Review Letters, Issue 122, 2019, Page(s) 103002, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.122.103002

Ramsey-comb precision spectroscopy in xenon at vacuum ultraviolet wavelengths produced with high-order harmonic generation

Author(s): L. S. Dreissen, C.Roth, E.L. Gründeman, J.J.Krauth, M.G.J.Favier, and K.S.E. Eikema
Published in: Physical Review A, Issue 101, 2020, Page(s) 052509, ISSN 2469-9926
Publisher: American Physical Society
DOI: 10.1103/physreva.101.052509

Proton-electron mass ratio from laser spectroscopy of HD+ at the part-per-trillion level

Author(s): S. Patra, M. Germann, J.-Ph. Karr, M. Haidar, L. Hilico, V. I. Korobov, F. M. J. Cozijn, K. S. E. Eikema, W. Ubachs, J. C. J. Koelemeij
Published in: Science, Issue 369, 2020, Page(s) 1238-1241, ISSN 0036-8075
Publisher: American Association for the Advancement of Science
DOI: 10.1126/science.aba0453

Three-body QED test and fifth-force constraint from vibrations and rotations of HD+

Author(s): M. Germann, S. Patra , J.-Ph. Karr , L. Hilico , V. I. Korobov, E. J. Salumbides, K. S. E. Eikema, W. Ubachs , J.C.J. Koelemeij
Published in: Physical Review Research, Issue 3, 2021, Page(s) L022028, ISSN 2643-1564
Publisher: American Physical Society
DOI: 10.1103/physrevresearch.3.l022028

High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation

Author(s): L. S. Dreissen, C.Roth, E.L. Gründeman, J.J.Krauth, M.G.J.Favier, and K.S.E. Eikema
Published in: Physical Review Letters, Issue 123, 2019, Page(s) 143001, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.123.143001

Paving the way for fundamental physics tests with singly-ionized helium

Author(s): Julian J. Krauth; L. S. Dreissen; C. Roth; E. L. Gründeman; Mathieu Collombon; Maxime Favier; Kjeld S. E. Eikema
Published in: Proceedings of Science PoS (FFK2019), Issue 353, 2020, Page(s) 1, ISSN 1824-8039
Publisher: Sissa Medialab
DOI: 10.22323/1.353.0049

Determination of the Interval between the Ground States of Para- and Ortho- H2

Author(s): M. Beyer, N. Hölsch, J. Hussels, C.-F. Cheng, E. J. Salumbides, K. S. E. Eikema, W. Ubachs , Ch. Jungen, F. Merkt
Published in: Physical Review Letters, Issue 123, 2019, Page(s) 163002, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.123.163002

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