42 citations · 89 across the 4 of their papers we have counts for
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hep-th2018
Heterotic-string amplitudes at one loop: modular graph forms and relations to open strings
Jan E. Gerken, Axel Kleinschmidt, Oliver Schlotterer
We investigate one-loop four-point scattering of non-abelian gauge bosons in heterotic string theory and identify new connections with the corresponding open-string amplitude. In t…
hep-th2018
Holomorphic subgraph reduction of higher-point modular graph forms
Jan E. Gerken, Justin Kaidi
Modular graph forms are a class of modular covariant functions which appear in the genus-one contribution to the low-energy expansion of closed string scattering amplitudes. Modula…