Peering beyond our horizon with axions

Peering beyond our horizon with axions

Axions with decay constant greater than 10**12 GeV are ruled out, except in an anthropic inflationary scenario, where the initial misalignment angle appears fine-tuned. Unlike many other anthropic arguments, the anthropic axion is on rather solid ground since the a priori probability distribution is known, and the astrophysical consequences for different misalignment angles can be at least be estimated. I discuss the possibility that remnants of pre-inflationary inhomogenities could possibly be detected in such scenarios.

University of Washington, Seattle

The event is finished.

Date

7 May 2008
Expired!

Time

14h15 – 0h00

Location

Salle Claude Itzykson, Bât. 774
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