activity
20162024
most citedNew measurement of the transition frequency of hydrogen: contribution to the proton charge radius puzzle

259 citations · 371 across the 7 of their papers we have counts for

collaborators

7 papers

physics.chem-ph2024

Room temperature detection of the (H2)2 dimer

H. Fleurbaey, S. Kassi, A. Campargue

The hydrogen dimer, (H2)2, is among the most weakly bound van der Waals complexes and a prototype species for first principles ab initio studies. The detection of the (H2)2 infrare…

physics.chem-ph2020

Electric-quadrupole and magnetic-dipole contributions to the n2+n3 band of carbon dioxide near 3.3 micron

Hélène Fleurbaey, Roberto Grilli, Didier Mondelain +2

The recent detections of electric-quadrupole (E2) transitions in water vapor and magnetic-dipole (M1) transitions in carbon dioxide have opened a new field in molecular spectroscop…

physics.atom-ph2020★ 34 cited

Cavity ring-down spectroscopy of CO near = 2.06 m: Accurate transition intensities for the Orbiting Carbon Observatory-2 (OCO-2) "strong band"

Hélène Fleurbaey, Hongming Yi, Erin M. Adkins +2

The = 2.06 m absorption band of CO is widely used for the remote sensing of atmospheric carbon dioxide, making it relevant to many important top-down measurements of car…

physics.atom-ph2019★ 12 cited

High-Resolution Hydrogen Spectroscopy and the Proton Radius Puzzle

Simon Thomas, Hélène Fleurbaey, Sandrine Galtier +3

High resolution spectroscopy of the hydrogen atom takes on particular importance in the new SI, as it allows to accurately determine fundamental constants, such as the Rydberg cons…

physics.atom-ph2018★ 259 cited

New measurement of the transition frequency of hydrogen: contribution to the proton charge radius puzzle

Hélène Fleurbaey, Sandrine Galtier, Simon Thomas +6

We present a new measurement of the two-photon transition frequency of hydrogen, realized with a continuous-wave excitation laser at 205 nm on a room-temperature atomic bea…

physics.atom-ph2017★ 18 cited

Cross-damping effects in 1S-3S spectroscopy of hydrogen and deuterium

Hélène Fleurbaey, François Biraben, Lucile Julien +2

We calculate the cross-damping frequency shift of a laser-induced two-photon transition monitored through decay fluorescence, by adapting the analogy with Raman scattering develope…

physics.atom-ph2016★ 48 cited

Deuteron charge radius and Rydberg constant from spectroscopy data in atomic deuterium

Randolf Pohl, François Nez, Thomas Udem +11

We give a pedagogical description of the method to extract the charge radii and Rydberg constant from laser spectroscopy in regular hydrogen (H) and deuterium (D) atoms, that is pa…