Abstract
The Standard Model of fundamental interactions describes all nongravitational physical phenomena. Nevertheless, there is a general consensus among particle physicists that the Standard Model is not the final theory of electromagnetic, weak and strong interactions.
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Notes
- 1.
Upper bounds are given for normal ordering only; they are a little tighter for inverse ordering.
- 2.
The KATRIN experiment in Karlsruhe started data taking in May 2018.
- 3.
In the extended Standard Model with massive neutrinos, there are in total 25 free parameters with Dirac neutrinos, 27 with Majorana neutrinos.
- 4.
The possible CP violation in the lepton sector in extensions of the Standard Model with massive neutrinos is not yet confirmed definitively although some experimental indications have been found.
- 5.
If this condition of significance would hold for opinion polls, most institutes in the business would have to close down.
- 6.
The abelian group U(1) is the culprit.
- 7.
In quantum theory this statement is meaningful although only about \(14\cdot 10^9\) years have passed since the Big Bang. In case of doubt, consult a quantum physicist of your choice.
- 8.
This so-called anthropic principle has a much longer history than superstring theory.
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Ecker, G. (2019). Beyond the Standard Model?. In: Particles, Fields, Quanta. Undergraduate Lecture Notes in Physics. Springer, Cham. https://doi.org/10.1007/978-3-030-14479-1_10
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DOI: https://doi.org/10.1007/978-3-030-14479-1_10
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