Stability of the proton-to-electron mass ratio

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dc.creatorShelkovnikov, Alexander
dc.creatorButcher, Robert James
dc.creatorChardonnet, Christian
dc.creatorAmy-Klein, Anne
dc.date2008-03-12
dc.date.accessioned2026-07-07T12:17:36Z
dc.date.available2026-07-07T12:17:36Z
dc.descriptionWe report a limit on the fractional temporal variation of the proton-to-electron mass ratio as, obtained by comparing the frequency of a rovibrational transition in SF6 with the fundamental hyperfine transition in Cs. The SF6 transition was accessed using a CO2 laser to interrogate spatial 2-photon Ramsey fringes. The atomic transition was accessed using a primary standard controlled with a Cs fountain. This result is direct and model-free.
dc.identifierhttps://arxiv.org/abs/0803.1829
dc.identifierhttp://arxiv.org/abs/0803.1829
dc.identifierPhys.Rev.Lett.100:150801,2008
dc.identifierdoi:10.1103/PhysRevLett.100.150801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/212129
dc.subjectAtomic Physics
dc.subjectQuantum Physics
dc.titleStability of the proton-to-electron mass ratio
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