d = 4 as the critical dimensionality of asymptotically safe interactions
We explore the question why our universe is four dimensional from an asymptotically safe vantage point. We find hints that asymptotically safe quantum fluctuations of gravity can only solve the U(1) Landau-pole problem in the Standard Model in four dimensions. This could single out the observed dime...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2019-06-01
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Series: | Physics Letters B |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319303144 |