High resolution spectroscopy of 1S-3S transition in hydrogen

High resolution spectroscopy of 1S-3S transition in hydrogen

The aim of our experiment is to improve the spectroscopy of atomic hydrogen in order to determine the charge radius of the proton. A new continuous laser source at 205 nm allows us to reach a statistical uncertainty of 2.2 kHz on the measurement of the 1S-3S transition frequency. This uncertainty co...

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Bibliographic Details
Published in:2016 Conference on Precision Electromagnetic Measurements (CPEM 2016) pp. 1 - 2
Main Authors: Fleurbaey, Helene, Galtier, Sandrine, Guellati, Salda, Clade, Pierre, Biraben, Francois, Julien, Lucile, Nez, Francois
Format: Conference Proceeding Journal Article
Language:English
Published: IEEE 01-07-2016
Subjects:
Atomic beams
Atomic measurements
Atomic radius
Charge
Conferences
Continuous UV laser source
Electromagnetic measurement
Frequency measurement
fundamental constants
Hydrogen
hydrogen spectroscopy
Hydrogen storage
Laser transitions
Lasers
Measurement by laser beam
proton radius
Spectroscopy
Uncertainty
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Summary:The aim of our experiment is to improve the spectroscopy of atomic hydrogen in order to determine the charge radius of the proton. A new continuous laser source at 205 nm allows us to reach a statistical uncertainty of 2.2 kHz on the measurement of the 1S-3S transition frequency. This uncertainty could be sufficient to clarify the proton radius puzzle, however there remain systematic effects that are currently under study.
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SourceType-Conference Papers & Proceedings-2
ISSN:2160-0171
DOI:10.1109/CPEM.2016.7540778