From elliptic multiple zeta values to modular graph functions: open and closed 
strings at one loop

Broedel, Johannes; Schlotterer, Oliver; Zerbini, Federico

doi:10.1007/JHEP01(2019)155

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学術論文

From elliptic multiple zeta values to modular graph functions: open and closed strings at one loop

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Schlotterer, Oliver
Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society;

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1803.00527.pdf
(プレプリント), 2MB

Broedel2019_Article_FromEllipticMultipleZetaValues.pdf
(出版社版), 978KB

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引用

Broedel, J., Schlotterer, O., & Zerbini, F. (2019). From elliptic multiple zeta values to modular graph functions: open and closed strings at one loop. Journal of High Energy Physics, 2019(1):. doi:10.1007/JHEP01(2019)155.

引用: https://hdl.handle.net/21.11116/0000-0000-F4B4-1

要旨

We relate one-loop scattering amplitudes of massless open- and closed-string
states at the level of their low-energy expansion. The modular graph functions
resulting from integration over closed-string punctures are observed to follow
from symmetrized open-string integrals through a tentative generalization of
the single-valued projection known from genus zero.