SU(3)×SU(2)×U(1) vacua in F-theory

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Abstract

The Standard Model group and matter spectrum is obtained in vacua of F-theory, without resorting to an intermediate unification group. The group SU(3)×SU(2)×U(1)Y is the commutant to SU(5){box drawings light up and horizontal}×U(1)Y structure group of a Higgs bundle in E8 and is geometrically realized as a deformation of I5 singularity. Lying along the unification groups of En, our vacua naturally inherit their unification structure. By modding SU(5){box drawings light up and horizontal} out by Z4 monodromy group, we can distinguish Higgses from lepton doublets by matter parity. Turning on universal G-flux on this part, the spectrum contains three generations of quarks and leptons, as well as vectorlike pairs of electroweak and colored Higgses. Minimal Yukawa couplings is obtained at the renormalizable level.

Original languageEnglish
Pages (from-to)1-32
Number of pages32
JournalNuclear Physics, Section B
Volume842
Issue number1
DOIs
StatePublished - Jan 2011

Bibliographical note

Funding Information:
This work is partially supported by the Grant-in-Aid for Scientific Research Nos. 20⋅08326 and 20540266 from the Ministry of Education, Culture, Sports, Science and Technology of Japan .

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