MCTP HET BROWN BAG SEMINAR
From Dlogs to Dilogs


Sep
12
2013

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  • Speaker: Arthur Lipstein (Oxford University, Mathematical Institute)
  • Host Department: Physics
  • Date: 09/12/2013
  • Time: 12:00 PM - 1:00 PM

  • Location: 3481 Randall

  • Description:

    In this talk, I will describe a new form of hidden simplicity in the planar scattering amplitudes of N=4 super-Yang-Mill?s 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 and efficient method for computing scattering amplitudes more generally.