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hep-th2024★ 4 cited
Regge Limit of One-Loop String Amplitudes
Pinaki Banerjee, Lorenz Eberhardt, Sebastian Mizera
We study the high-energy limit of one-loop string amplitudes at fixed momentum transfer. For the closed string, the high-energy behaviour of the amplitudes can be determi…
hep-th2024★ 8 cited
Lorentzian contours for tree-level string amplitudes
Lorenz Eberhardt, Sebastian Mizera
We engineer compact contours on the moduli spaces of genus-zero Riemann surfaces that achieve analytic continuation from Euclidean to Lorentzian worldsheets. These generalized Poch…