Print Email Facebook Twitter Probing unification scenarios with atomic clocks Title Probing unification scenarios with atomic clocks Author Ferreira, M.C. Juliao, M.D. Martins, C.J.A.P. Monteiro, A.M.R.V.L. Faculty Applied Sciences Date 2012-12-17 Abstract We discuss the usage of measurements of the stability of nature’s fundamental constants coming from comparisons between atomic clocks as a means to constrain coupled variations of these constants in a broad class of unification scenarios. After introducing the phenomenology of these models, we provide updated constraints based on a global analysis of the latest experimental results. We obtain null results for the proton-to-electron mass ratio ??/?=(0.68±5.79)×10-16??yr-1 and for the gyromagnetic factor g?p/gp=(-0.72±0.89)×10-16??yr-1 (both of these being at the 95% confidence level). These results are compatible with theoretical expectations on unification scenarios, but much freedom exists due to the presence of a degeneracy direction in the relevant parameter space. To reference this document use: http://resolver.tudelft.nl/uuid:4375032f-628a-4168-83f5-edcb171852ed DOI https://doi.org/10.1103/PhysRevD.86.125025 Publisher American Physical Society ISSN 1550-7998 Source http://link.aps.org/doi/10.1103/PhysRevD.86.125025 Source Physical Review D, 86 (12), 2012 Part of collection Institutional Repository Document type journal article Rights © 2012 American Physical Society Files PDF Monteiro_2012.pdf 160.38 KB Close viewer /islandora/object/uuid:4375032f-628a-4168-83f5-edcb171852ed/datastream/OBJ/view