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Multiloop soft theorem of the dilaton in the bosonic string
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
Complesso Univ Monte S Angelo, Sez Napoli, Ist Nazl Fis Nucl, Edificio 6,Via Cintia, I-80126 Naples, Italy..
Max Planck Inst Gravitat Phys, Albert Einstein Inst, Muhlenberg 1, DE-14476 Potsdam, Germany..
2019 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 4, article id 041902Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2019. Vol. 100, no 4, article id 041902
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-257550DOI: 10.1103/PhysRevD.100.041902ISI: 000479032600001Scopus ID: 2-s2.0-85072232511OAI: oai:DiVA.org:kth-257550DiVA, id: diva2:1354578
Note

QC 20190925

Available from: 2019-09-25 Created: 2019-09-25 Last updated: 2019-09-25Bibliographically approved

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Di Vecchia, Paolo

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