Abstract
We present a parts-per-million test of quantum electrodynamics (QED) in the HD+ molecular hydrogen ion, improving on previous tests based on vibrational and rotational transitions by factors of 76 and 1.4, respectively. The test is performed following a unified statistical approach that also produces improved constraints on physics beyond the standard model. We furthermore show how individual constraints derived from the various degrees of freedom in HD+ and antiprotonic helium can be combined to enhance the sensitivity, thus ruling out "fifth forces"on the Ångstrom scale that are 1011 times weaker than the electromagnetic interaction.
Original language | English |
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Article number | L022028 |
Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Physical Review Research |
Volume | 3 |
Issue number | 2 |
Early online date | 28 Jun 2021 |
DOIs | |
Publication status | Published - Jun 2021 |
Bibliographical note
Publisher Copyright:© 2021 authors. Published by the American Physical Society.