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Journal Article

Multiloop soft theorem of the dilaton in the bosonic string

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Mojaza,  Matin
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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1907.01036.pdf
(Preprint), 141KB

PhysRevD.100.041902.pdf
(Publisher version), 145KB

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Citation

Di Vecchia, P., Marotta, R., & Mojaza, M. (2019). Multiloop soft theorem of the dilaton in the bosonic string. Physical Review D, 100: 041902. doi:10.1103/PhysRevD.100.041902.


Cite as: https://hdl.handle.net/21.11116/0000-0004-76E5-5
Abstract
In this note we show that by fixing the multiloop Green function in the
closed bosonic string to be Arakelov's Green function, one obtains
factorization of scattering amplitudes with a softly emitted dilaton to the
same level as with a graviton to all loop order. This extends our previous
analysis at one loop to all loop orders and confirms that some high-energy
quantum symmetry in the bosonic string protects the factorization of amplitudes
with softly emitted dilatons.