
TL;DR
This paper reviews how the multiverse concept, with many ground states and varying physical parameters, influences the search for new physics beyond the Standard Model in particle physics.
Contribution
It provides a comprehensive survey of motivations for the multiverse and its implications for particle physics research beyond the Standard Model.
Findings
Multiverse theories suggest multiple domains with different physical parameters.
The multiverse concept impacts strategies for discovering new physics.
The idea influences the interpretation of fundamental physical constants.
Abstract
The possibility of fundamental theories with very many ground states, each with different physical parameters, changes the way that we approach the major questions of particle physics. Most importantly, it raises the possibility that these different parameters could be realised in different domains in the larger universe. In this review, we survey the motivations for the multiverse and impact of the idea of the multiverse on the search for new physics beyond the Standard Model.
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