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<pre>W&M Physics Colloquium
Friday, November 5, 2010
4:00 p.m.
<tt>Millington 150
David Kaplan
</tt>University of Washington
<b><tt>
Axions, the Anthropic Principle, and the Tilted Universe </tt></b></pre>
<pre><tt>The axion is a light, weakly interacting particle that is a
consequence of the Peccei-Quinn solution to the strong CP
problem, proposed in the late 1970's. The story of the axion is
like A Thousand and One Nights, digressing its way throughout
particle physics, astrophysics and cosmology. I discuss this
story, including more recent developments, and explain how one
might detect the presence of an axion cosmic string ten trillion
light years away -- a million times farther away from Earth than
our present horizon. </tt></pre>
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