F-theory and Neutrinos: Kaluza-Klein Dilution of Flavor Hierarchy

F-theory and Neutrinos: Kaluza-Klein Dilution of Flavor Hierarchy

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F-theory and Neutrinos: Kaluza-Klein Dilution of Flavor Hierarchy

dc.contributor.author	Bouchard, Vincent
dc.contributor.author	Heckman, Jonathan
dc.contributor.author	Seo, Jihye
dc.contributor.author	Vafa, C.
dc.date.accessioned	2012-01-11T18:25:51Z
dc.date.issued	2010
dc.identifier.citation	Bouchard, Vincent, Jonathan Heckman, Jihye Seo, and Cumrun Vafa. 2010. F-theory and neutrinos: Kaluza-Klein dilution of flavor hierarchy. Journal of High Energy Physics 2010(1): 061.	en_US
dc.identifier.issn	1029-8479	en_US
dc.identifier.uri	http://nrs.harvard.edu/urn-3:HUL.InstRepos:7561193
dc.description.abstract	We study minimal implementations of Majorana and Dirac neutrino scenarios in F-theory GUT models. In both cases the mass scale of the neutrinos \(m_{\nu} \sim M_{weak}^2/\land_{UV}\) arises from integrating out Kaluza-Klein modes, where \(\land_{UV}\) is close to the GUT scale. The participation of non-holomorphic Kaluza-Klein mode wave functions dilutes the mass hierarchy in comparison to the quark and charged lepton sectors, in agreement with experimentally measured mass splittings. The neutrinos are predicted to exhibit a "normal" mass hierarchy, with masses \(m_3,m_2,m_1 \sim .05 \times (1,\alpha_{GUT}^{1/2},\alpha_{GUT}\)) eV. When the interactions of the neutrino and charged lepton sectors geometrically unify, the neutrino mixing matrix exhibits a mild hierarchical structure such that the mixing angles \(\theta_{23}\) and \(\theta_{12}\) are large and comparable, while \(\theta_{13}\) is expected to be smaller and close to the Cabibbo angle: \(\theta_{13} \sim \theta_{C} \sim \alpha_{GUT}^{1/2} \sim 0.2\). This suggests that \(\theta_{13}\) should be near the current experimental upper bound.	en_US
dc.description.sponsorship	Physics	en_US
dc.language.iso	en_US	en_US
dc.publisher	Springer Verlag	en_US
dc.relation.isversionof	doi:10.1007/JHEP01(2010)061	en_US
dc.relation.hasversion	http://arxiv.org/PS_cache/arxiv/pdf/0904/0904.1419v2.pdf	en_US
dash.license	OAP
dc.subject	compactification and string models	en_US
dc.subject	F-theory	en_US
dc.subject	neutrino physics	en_US
dc.subject	GUT	en_US
dc.title	F-theory and Neutrinos: Kaluza-Klein Dilution of Flavor Hierarchy	en_US
dc.type	Journal Article	en_US
dc.description.version	Author's Original	en_US
dc.relation.journal	Journal of High Energy Physics	en_US
dash.depositing.author	Vafa, C.
dc.date.available	2012-01-11T18:25:51Z