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

DSpace/Manakin Repository

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

Citable link to this page


Title: F-theory and Neutrinos: Kaluza-Klein Dilution of Flavor Hierarchy
Author: Bouchard, Vincent; Heckman, Jonathan; Seo, Jihye; Vafa, C.

Note: Order does not necessarily reflect citation order of authors.

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.
Full Text & Related Files:
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.
Published Version: doi:10.1007/JHEP01(2010)061
Other Sources: http://arxiv.org/PS_cache/arxiv/pdf/0904/0904.1419v2.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:7561193

Show full Dublin Core record

This item appears in the following Collection(s)

  • FAS Scholarly Articles [8086]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

Search DASH

Advanced Search