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UID:UW-Physics-Event-2872
DTSTART:20130315T110000
DURATION:PT1H0M0S
LOCATION: 5310 Chamberlin
SUMMARY:Instantons on R^3 x S^1 and a semi-classical realization of IR renormalons\, Theory Seminar (High Energy/Cosmology)\, Phillip Argyres\, Cincinnati
DESCRIPTION:We study the semi-classical dynamics of four dimensional gauge theories with adjoint fermions compactified on a circle with periodic boundary conditions for the fermions. There are monopole-instantons (with fermion zero modes) and two types of monopole--anti-monopole molecules\, called bions. The plasma of the type-one bions--- which carry net magnetic charge---induces a mass gap for gauge fluctuations. The type-two bion is both topologically and magnetically neutral\, and its understanding requires a generalization of multi-instanton techniques in quantum mechanics to compactified field theory. We conjecture that it is the semi-classical realization of four-dimensional IR renormalons.
URL:http://www.physics.wisc.edu/twap/view.php?id=2872
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