The cosmological evolution of the nucleon mass and the electroweak coupling constants
By X. Calmet, H. Fritzsch. 2001
164 citations recorded by the source corpus.
Abstract. Starting from astrophysical indications that the fine structure constant might undergo a small cosmological time shift, we discuss the implications of such an effect from the point of view of particle physics. Grand unification implies small time shifts for the nucleon mass, the magnetic moment of the nucleon and the weak coupling constant as well. The relative change of the nucleon mass is about 40 times larger than the relative change of $\alpha$. Laboratory measurements using very advanced methods in quantum optics might soon reveal small time shifts of the nucleon mass, the magnetic moment of the nucleon and the fine structure constant.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/5223fbb8102a0c0c6ed253b892e29944bc35960b
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In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- Varying Constants, Gravitation and Cosmology (2010, background): “[77, 74, 75, 135, 136, 185, 313] where the variation of the 3 coupling constants was reduced to the one of αU and MU/MP.”
- Cold atom clocks and applications (2005, background): “ms and Λ QCD (ref. [35, 36]), we find the following constraint to the variation of fundamental constants: d dt ln α0.49[m q/Λ QCD] 0.174[m s/Λ QCD] 0.027 = (0.5± 5.3)×10 −16yr 1. (5) As pointed out in [25, 45, 46], the hypothetical unification of all interactions implies that a variation of the fine-st”