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High Energy Theory Seminar

Friday, October 4, 2013
11:00am to 12:00pm
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Lauritsen 469
From dlogs to dilogs
Arthur Lipstein, University of Oxford,

In this talk, I will describe a new form of hidden simplicity in the planar scattering amplitudes of N=4 super-Yang-Mills theory, notably that the loop integrands can be expressed in dlog form. I will explain how this form arises geometrically from computing the scattering amplitudes using a holomorphic Wilson loop in twistor space. I will also describe a systematic method for evaluating such integrals and use it to obtain a new formula for the 1-loop MHV amplitude. These techniques can be extended to higher loop amplitudes and may lead to a simple method for computing scattering amplitudes more generally.