3 papers
hep-th2026
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…
hep-th2025
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\varep…
hep-th2025
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…