A Geometrical Framework for Amplitude Recursions: Bridging Between Trees and Loops
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Publication:5022174
DOI10.1007/978-3-030-80219-6_6zbMATH Open1484.81093arXiv2107.03893OpenAlexW3180759203MaRDI QIDQ5022174
Author name not available (Why is that?)
Publication date: 18 January 2022
Published in: (Search for Journal in Brave)
Abstract: Various methods for the recursive evaluation of scattering amplitudes in quantum field theory and string theory have been put forward during the last couple of years. In these proceedings we describe a geometrical framework, which is believed to be capable of treating many of these recursions in a unified way. Our recursive framework is based on manipulating iterated integrals on Riemann surfaces with boundaries. A geometric parameter appears as variable of a differential equation of KZ or KZB type. The parameter interpolates between two associated regularized boundary values, which contain iterated integrals closely related to scattering amplitudes defined on two different geometries.
Full work available at URL: https://arxiv.org/abs/2107.03893
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