An upper limit to the variation in the fundamental constants at redshiftz= 5.2
نویسندگان
چکیده
منابع مشابه
Comment on the Variation of Fundamental Constants
It is argued by Duff that only the time variation of dimensionless constants of nature is a legitimate subject of enquiry, and that dimensional constants such as c, h̄,G... are merely human constructs whose value has no operational meaning. We refute this claim and point out that such varying dimensional “constants” can have significant physical consequences for the universe that can be directly...
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The progress of Particle Physics is closely linked to the progress in the understanding of the fundamental constants, like the finestructure constant, the mass of the electron or nucleon, or the electroweak mixing angle. The relation between the 18 fundamental constants of the Standard Model and the elementary units used in other fields like quantum optics or solid state physics is far from tri...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201219042