University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Thursday, November 20th 2014
12:15 pm:
Speaker: Asimina Arvanitaki (Perimeter Institute)
Subject: The Highs and Lows of the QCD Axion

The QCD axion was proposed over thirty years ago and has been searched for ever since. I will talk about two experiments that cover different parts of the QCD axion parameter space. The first is based on precision magnetometry and searches for axion mediated monopole-dipole and dipole-dipole interactions. This method is sensitive to axions in the traditional window from 10^9 to 10^11 GeV in f_a and is complementary to cavity searches, such as ADMX, and astrophysical bounds. The second experiment is Advanced LIGO which probes axion decay constants above the GUT scale through the effect of black hole superradiance.

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