two gamma event


Kit Colwell

Dyons and Helicity Amplitudes

Nov. 7, 2012

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Abstract: Historically, the theory of monopoles and dyons has been plagued with nonlocality and broken Lorentz covariance, leading to difficulty in calculations of amplitudes involving magnetic currents. We present the Zwanziger 2-gauge formalism that addresses these problems, and use the spinor helicity method with twistors to greatly simplify results, such as in light-by-light scattering.

Time: 12:10pm-1:10pm

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