2 papers
hep-th2020
Analytic Structure of all Loop Banana Amplitudes
Kilian Bönisch, Fabian Fischbach, Albrecht Klemm +2
Using the Gelfand-Kapranov-Zelevinsk\uı system for the primitive cohomology of an infinite series of complete intersection Calabi-Yau manifolds, whose dimension is the loop order m…
hep-th2020
The -loop Banana Amplitude from GKZ Systems and relative Calabi-Yau Periods
Albrecht Klemm, Christoph Nega, Reza Safari
We use the GKZ description of periods and certain classes of relative periods on families of Barth-Nieto Calabi-Yau -folds in order to solve the -loop banana amplitudes w…