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A Tale of Two Loops: Simplifying All-Plus Yang-Mills Amplitudes

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 نشر من قبل Gustav Mogull
 تاريخ النشر 2017
  مجال البحث
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 تأليف Gustav Mogull




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Pure Yang-Mills amplitudes with all external gluons carrying positive helicity, known as all-plus amplitudes, have an especially simple structure. The tree amplitudes vanish and, up to at least two loops, the loop-level amplitudes are related to those of $mathcal{N}=4$ super-Yang-Mills (SYM) theory. This makes all-plus amplitudes a useful testing ground for new methods of simplifying more general classes of amplitudes. In this thesis we consider three new approaches, focusing on the structure before integration.



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