The fundamental constants in physics and their possible time variation
β Scribed by H. Fritzsch
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 220 KB
- Volume
- 203-204
- Category
- Article
- ISSN
- 0920-5632
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We discuss the fundamental constants in the Standard Model of particle physics. Furthermore we discuss possible changes of these constants on the cosmological time scale. The Grand Unification of the observed strong, electromagnetic and weak interactions implies relations between the time variations
## Abstract Extensive measurements of solar radiation at Sede Boqer, Israel revealed considerable changes in the direct and diffuse solar irradiance on clear days beginning in September 1982. The direct beam irradiance showed a consistent decrease of about 10 per cent compared to clearβday values o