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New soft theorems for the gravity dilaton and the Nambu-Goldstone dilaton at subsubleading order
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
2016 (English)In: PHYSICAL REVIEW D, ISSN 2470-0010, Vol. 93, no 8, 085015Article in journal (Refereed) PublishedText
Abstract [en]

We study the soft behavior of two seemingly different particles that are both referred to as dilatons in the literature, namely the one that appears in theories of gravity and in string theory and the Nambu-Goldstone boson of spontaneously broken conformal invariance. Our primary result is the discovery of a soft theorem at subsubleading order for each dilaton, which in both cases contains the operator of special conformal transformations. Interesting similarities as well as differences between the dilaton soft theorems are discussed.

Place, publisher, year, edition, pages
2016. Vol. 93, no 8, 085015
National Category
Physical Sciences Other Physics Topics
URN: urn:nbn:se:kth:diva-185972DOI: 10.1103/PhysRevD.93.085015ISI: 000373771000010ScopusID: 2-s2.0-84963779422OAI: diva2:926553

QC 20160509

Available from: 2016-05-09 Created: 2016-04-29 Last updated: 2016-05-09Bibliographically approved

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Di Vecchia, Paolo
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