State of the art in the determination of the fine-structure constant and the ratio $h/m_\mathrm{u}$ - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Comptes Rendus. Physique Année : 2019

State of the art in the determination of the fine-structure constant and the ratio $h/m_\mathrm{u}$

Résumé

The fine structure constant α and the ratio h/mu between the Planck constant and the unified atomic mass are keystone constants for the determination of other fundamental physical constants, especially the ones involved in the framework of the future International System of units. This paper presents how these two constants, which can be deduced from one another, are measured. We will present in detail the measurement of h/mRb performed by atomic interferometry at the Laboratoire Kastler Brossel in Paris. This type of measurement also allows a test of the standard model to be carried out with unparalleled accuracy.
Fichier principal
Vignette du fichier
1901.01990.pdf (707.68 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01990836 , version 1 (24-03-2020)

Identifiants

Citer

Pierre Cladé, François Nez, François Biraben, Saïda Guellati-Khélifa. State of the art in the determination of the fine-structure constant and the ratio $h/m_\mathrm{u}$. Comptes Rendus. Physique, 2019, 20, pp.77-91. ⟨10.1016/j.crhy.2018.12.003⟩. ⟨hal-01990836⟩
84 Consultations
217 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More