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  Soft behavior of a closed massless state in superstring and universality in the soft behavior of the dilaton

Di Vecchia, P., Marotta, R., & Mojaza, M. (2016). Soft behavior of a closed massless state in superstring and universality in the soft behavior of the dilaton. Journal of high energy physics: JHEP, 2016(12): 020. doi:10.1007/JHEP12(2016)020.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-399C-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-E9B4-C
Genre: Journal Article

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 Creators:
Di Vecchia, Paolo, Author
Marotta, Raffaele, Author
Mojaza, Matin1, Author              
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Theory, hep-th
 Abstract: We consider the tree-level scattering amplitudes in the NS-NS (Neveu-Schwarz) massless sector of closed superstrings in the case where one external state becomes soft. We compute the amplitudes generically for any number of dimensions and any number and kind of the massless closed states through the subsubleading order in the soft expansion. We show that, when the soft state is a graviton or a dilaton, the full result can be expressed as a soft theorem factorizing the amplitude in a soft and a hard part. This behavior is similar to what has previously been observed in field theory and in the bosonic string. Differently from the bosonic string, the supersymmetric soft theorem for the graviton has no string corrections at subsubleading order. The dilaton soft theorem, on the other hand, is found to be universally free of string corrections in any string theory.

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 Dates: 2016-10-112016
 Publication Status: Published in print
 Pages: 27 pages, one appendix
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1610.03481
DOI: 10.1007/JHEP12(2016)020
URI: http://arxiv.org/abs/1610.03481
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Title: Journal of high energy physics : JHEP
Source Genre: Journal
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Publ. Info: Bologna, Italy : Società italiana di fisica
Pages: - Volume / Issue: 2016 (12) Sequence Number: 020 Start / End Page: - Identifier: ISSN: 1126-6708
CoNE: /journals/resource/111021927548002