232 citations · 3.9k across the 80 of their papers we have counts for
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Poincaré series for modular graph forms at depth two. II. Iterated integrals of cusp forms
Daniele Dorigoni, Axel Kleinschmidt, Oliver Schlotterer
We continue the analysis of modular invariant functions, subject to inhomogeneous Laplace eigenvalue equations, that were determined in terms of Poincaré series in a companion pape…
Poincaré series for modular graph forms at depth two. I. Seeds and Laplace systems
Daniele Dorigoni, Axel Kleinschmidt, Oliver Schlotterer
We derive new Poincaré-series representations for infinite families of non-holomorphic modular invariant functions that include modular graph forms as they appear in the low-energy…
Two-loop superstring five-point amplitudes III, construction via the RNS formulation: even spin structures
Eric D'Hoker, Oliver Schlotterer
The contribution from even spin structures to the genus-two amplitude for five massless external NS states in Type II and Heterotic superstrings is evaluated from first principles…
One-loop matrix elements of effective superstring interactions: -expanding loop integrands
Alex Edison, Max Guillen, Henrik Johansson +2
In the low-energy effective action of string theories, non-abelian gauge interactions and supergravity are augmented by infinite towers of higher-mass-dimension operators. We propo…
Scattering Massive String Resonances through Field-Theory Methods
Max Guillen, Henrik Johansson, Renann Lipinski Jusinskas +1
We present a new method, exact in , to explicitly compute string tree-level amplitudes involving one massive state and any number of massless ones. This construction relies on…
Coaction and double-copy properties of configuration-space integrals at genus zero
Ruth Britto, Sebastian Mizera, Carlos Rodriguez +1
We investigate configuration-space integrals over punctured Riemann spheres from the viewpoint of the motivic Galois coaction and double-copy structures generalizing the Kawai-Lewe…