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Calabi-Yau Feynman integrals in gravity: varepsilon-factorized form for apparent singularities
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Calabi-Yau Feynman integrals in gravity: $\varepsilon$-factorized form for apparent singularities
abstract
We study a recently identified four-loop Feynman integral that contains a three-dimensional Calabi-Yau geometry and contributes to the scattering of black holes in classical gravity at fifth post-Minkowskian and second self-force order (5PM 2SF) in the conservative sector. In contrast to previously studied Calabi-Yau Feynman integrals, the higher-order differential equation that this integral satisfies in dimensional regularization exhibits $\varepsilon$-dependent apparent singularities. We introduce an appropriate ansatz which allows us to bring such cases into an $\varepsilon$-factorized form. As a proof of principle, we apply it to the integral at hand.
Forward citations
Cited by 9 Pith papers
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