133 citations · 402 across the 11 of their papers we have counts for
31 papers · 1 filter
Precision asymptotics of string amplitudes
Marco Maria Baccianti, Lorenz Eberhardt, Sebastian Mizera
Recent work revealed a tension between the Gross-Mende analysis of the high-energy fixed-angle behavior of string amplitudes and the explicit numerical data. Motivated by this puzz…
One-loop four-graviton string amplitude at finite
Marco Maria Baccianti, Lorenz Eberhardt, Sebastian Mizera
We evaluate the one-loop four-graviton scattering amplitude in type-II superstring theory exactly in . This result is achieved by combining physical insights into the $i\vareps…
Rademacher expansion of modular integrals
Marco Maria Baccianti, Jeevan Chandra, Lorenz Eberhardt +2
We develop a method to evaluate integrals of non-holomorphic modular functions over the fundamental domain of the torus with modular parameter analytically. It proceeds in two…
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…
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…
Landau Singularities Revisited: Computational Algebraic Geometry for Feynman Integrals
Claudia Fevola, Sebastian Mizera, Simon Telen
We reformulate the analysis of singularities of Feynman integrals in a way that can be practically applied to perturbative computations in the Standard Model in dimensional regular…