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Nnaturalness

Monday, April 24, 2017
4:00 PM - 5:00 PM
Location: Lauritsen 469
Tim Cohen, University of Oregon

We present a new mechanism to stabilize the electroweak hierarchy. We introduce N copies of the Standard Model with varying values of the Higgs mass parameter. This generically yields a sector whose weak scale is parametrically removed from the cutoff by a factor of 1√N. Ensuring that reheating deposits a majority of the total energy density into this lightest sector requires a modification of the standard cosmological history, providing a powerful probe of the mechanism. Current and near-future experiments will explore much of the natural parameter space. Furthermore, supersymmetric completions which preserve grand unification predict superpartners with mass below mW x Mpl/MGUT10 TeV.

Series: High Energy Physics Seminar Series
For more information, please visit http://theory.caltech.edu/people/carol/seminar.html

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