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

Deuteron-to-Proton Mass Ratio from the Cyclotron Frequency Ratio of H2+ to D+ with H2+ in a Resolved Vibrational State

(2020) David J. Fink et al.   PHYSICAL REVIEW LETTERS

Quantum Interference Line Shifts of Broad Dipole‐Allowed Transitions

(2019) Thomas Udem et al.   ANNALEN DER PHYSIK

A measurement of the atomic hydrogen Lamb shift and the proton charge radius

(2019) N. Bezginov et al.   SCIENCE

A small proton charge radius from an electron–proton scattering experiment

(2019) W. Xiong et al.   NATURE

Rotational spectroscopy of cold and trapped molecular ions in the Lamb–Dicke regime

(2018) S. Alighanbari et al.   Nature Physics

New Measurement of the 1S−3S Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle

(2018) Hélène Fleurbaey et al.   PHYSICAL REVIEW LETTERS

Fundamental Transitions and Ionization Energies of the Hydrogen Molecular Ions with Few ppt Uncertainty

(2017) Vladimir I. Korobov et al.   PHYSICAL REVIEW LETTERS

High-Precision Measurement of the Proton’s Atomic Mass

(2017) F. Heiße et al.   PHYSICAL REVIEW LETTERS

The Rydberg constant and proton size from atomic hydrogen

(2017) Axel Beyer et al.   SCIENCE

Data and analysis for the CODATA 2017 special fundamental constants adjustment

(2017) Peter J Mohr et al.   METROLOGIA

CODATA Recommended Values of the Fundamental Physical Constants: 2014

(2016) Peter J. Mohr et al.   JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA

Theoretical Hyperfine Structure of the Molecular Hydrogen Ion at the 1 ppm Level

(2016) Vladimir I. Korobov et al.   PHYSICAL REVIEW LETTERS

Laser spectroscopy of muonic deuterium

(2016) R. Pohl et al.   SCIENCE

Buffer-gas cooling of antiprotonic helium to 1.5 to 1.7 K, and antiproton-to-electron mass ratio

(2016) M. Hori et al.   SCIENCE

Probing QED and fundamental constants through laser spectroscopy of vibrational transitions in HD+

(2016) J. Biesheuvel et al.   Nature Communications

Ultra-precise single-ion atomic mass measurements on deuterium and helium-3

(2015) S L Zafonte et al.   METROLOGIA

Erratum to: The electric quadrupole moment of molecular hydrogen ions and their potential for a molecular ion clock

(2014) D. Bakalov et al.   APPLIED PHYSICS B-LASERS AND OPTICS

H2+ and HD+: Candidates for a molecular clock

(2014) J.-Ph. Karr   JOURNAL OF MOLECULAR SPECTROSCOPY

Static and dynamic polarizability and the Stark and blackbody-radiation frequency shifts of the molecular hydrogen ionsH2+,HD+, andD2+

(2014) S. Schiller et al.   PHYSICAL REVIEW A

The electric quadrupole moment of molecular hydrogen ions and their potential for a molecular ion clock

(2013) D. Bakalov et al.   APPLIED PHYSICS B-LASERS AND OPTICS

Two-photon spectroscopy of trapped HD+ions in the Lamb-Dicke regime

(2013) Vu Quang Tran et al.   PHYSICAL REVIEW A

Proton Structure from the Measurement of 2S-2P Transition Frequencies of Muonic Hydrogen

(2013) A. Antognini et al.   SCIENCE

Observation of the v′=8←v=0 vibrational overtone in cold trapped HD+

(2012) J. C. J. Koelemeij et al.   APPLIED PHYSICS B-LASERS AND OPTICS

Magnetic field effects in the transitions of the HD+molecular ion and precision spectroscopy

(2011) D Bakalov et al.   JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Infrared dynamic polarizability of HD+ rovibrational states

(2011) J.C.J. Koelemeij   PHYSICAL CHEMISTRY CHEMICAL PHYSICS

Improved Measurement of the Hydrogen1S–2STransition Frequency

(2011) Christian G. Parthey et al.   PHYSICAL REVIEW LETTERS

Determination of the proton mass from a measurement of the cyclotron frequencies ofD+andH2+in a Penning trap

(2008) A. Solders et al.   PHYSICAL REVIEW A