Unitarity cuts of the worldsheet

We compute the imaginary parts of genus-one string scattering amplitudes. Following Witten's $i\varepsilon$ prescription for the integration contour on the moduli space of worldsheets, we give a general algorithm for computing unitarity cuts of the annulus, Möbius strip, and torus topologies e...

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Xehetasun bibliografikoak
Egile nagusia: Lorenz Eberhardt, Sebastian Mizera
Formatua: Artikulua
Hizkuntza:English
Argitaratua: SciPost 2023-02-01
Saila:SciPost Physics
Sarrera elektronikoa:https://scipost.org/SciPostPhys.14.2.015