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The $l$-loop Banana Amplitude from GKZ Systems and relative Calabi-Yau Periods

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 نشر من قبل Christoph Nega
 تاريخ النشر 2019
  مجال البحث فيزياء
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We use the GKZ description of periods and certain classes of relative periods on families of Barth-Nieto Calabi-Yau $(l-1)$-folds in order to solve the $l$-loop banana amplitudes with their general mass dependence. As examples we compute the mass dependencies of the banana amplitudes up to the three-loop case and check the results against the known results for special mass values.



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