dc.contributor.author Cicoli, M dc.contributor.author Quevedo, F dc.contributor.author Savelli, R dc.contributor.author Schachner, A dc.contributor.author Valandro, R dc.date.accessioned 2021-11-24T16:21:38Z dc.date.available 2021-11-24T16:21:38Z dc.date.issued 2021 dc.date.submitted 2021-06-18 dc.identifier.issn 1029-8479 dc.identifier.other jhep08(2021)099 dc.identifier.other 16509 dc.identifier.uri https://www.repository.cam.ac.uk/handle/1810/331028 dc.description.abstract Extracting reliable low-energy information from string compactifications notoriously requires a detailed understanding of the UV sensitivity of the corresponding effective field theories. Despite past efforts in computing perturbative string corrections to the tree-level action, neither a systematic approach nor a unified framework has emerged yet. We make progress in this direction, focusing on the moduli dependence of perturbative corrections to the 4D scalar potential of type IIB Calabi-Yau orientifold compactifications. We proceed by employing two strategies. First, we use two rescaling symmetries of type IIB string theory to infer the dependence of any perturbative correction on both the dilaton and the Calabi-Yau volume. Second, we use F/M-theory duality to conclude that KK reductions on elliptically-fibred Calabi-Yau fourfolds of the M-theory action at any order in the derivative expansion can only generate $(\alpha')^{\rm even}$ corrections to the 4D scalar potential, which, moreover, all vanish for trivial fibrations. We finally give evidence that $(\alpha')^{\rm odd}$ effects arise from integrating out KK and winding modes on the elliptic fibration and argue that the leading no-scale breaking effects at string tree-level arise from $(\alpha')^3$ effects, modulo potential logarithmic corrections. dc.language en dc.publisher Springer Science and Business Media LLC dc.subject Regular Article - Theoretical Physics dc.subject F-Theory dc.subject Flux compactifications dc.subject Superstring Vacua dc.title Systematics of the α′ expansion in F-theory dc.type Article dc.date.updated 2021-11-24T16:21:38Z prism.issueIdentifier 8 prism.publicationName Journal of High Energy Physics prism.volume 2021 dc.identifier.doi 10.17863/CAM.78473 dcterms.dateAccepted 2021-08-02 rioxxterms.versionofrecord 10.1007/JHEP08(2021)099 rioxxterms.version VoR rioxxterms.licenseref.uri http://creativecommons.org/licenses/by/4.0/ dc.contributor.orcid Schachner, A [0000-0002-7287-1476] dc.identifier.eissn 1029-8479 cam.issuedOnline 2021-08-19 dc.identifier.arxiv 2106.04592
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