The fine-tuning problems of particle physics and anthropic mechanisms

Details The fine-tuning problems of particle physics and anthropic mechanisms The fine-tuning problems of particle physics and anthropic mechanisms

2007-10-22

arxiv.org/abs/0710.4080v1

"Universe or Multiverse" ed. by Bernard Carr, pp. 231-246 (Cambridge University Press, Cambridge, 2007)

Physics

High Energy Physics

High Energy Physics - Phenomenology

This is a chapter in the book "Universe or Multiverse" ed. by Bernard Carr pp 231-246 (Cambridge University Press). It was wri

Scientific paper

Many of the classic problems of particle physics appear in a very different light when viewed from the perspective of the multiverse. Most importantly the two great ``fine tuning'' problems that motivate the field are far less serious when one accounts for the required anthropic constraints which exist in a multiverse. However, the challenge then becomes to construct a realistic physical theory of the multiverse and test it. I describe some phenomenology of the quark and lepton masses that may provide a window to the theory that underlies the multiverse.

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