Three family Z3 orbifold trinification, MSSM and doublet-triplet splitting problem

Kang Sin Choi; Jihn E. Kim

doi:10.1016/j.physletb.2003.06.036

Three family Z₃ orbifold trinification, MSSM and doublet-triplet splitting problem

Kang Sin Choi, Jihn E. Kim

Scranton Honors Program

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

A Z₃ orbifold compactification of E₈ x E ₈′ heterotic string is considered toward a trinification SU(3)³ with three light families. The GUT scale VEVs of the SU(2)_W x U(1)_Y x SU(3)_c singlet chiral fields in two sets of the trinification spectrum allow an acceptable symmetry breaking pattern toward MSSM. We show that a doublet-triplet splitting is related to the absence of a ΔB nonzero operator.

Original language	English
Pages (from-to)	87-92
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	567
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2003.06.036
State	Published - 7 Aug 2003

Bibliographical note

Funding Information:
We thank Kyuwan Hwang for a useful discussion. We also thank the Physikalisches Institut of the Universität Bonn for the hospitality extended to us during our visit when this work was initiated. This work is supported in part by the KOSEF Sundo Grant (2002), the BK21 program of Ministry of Education, and Korea Research Foundation Grant No. KRF-PBRG-2002-070-C00022.

Keywords

Superstring
Three families
Trinification
Z orbifold

Access to Document

10.1016/j.physletb.2003.06.036

Cite this

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title = "Three family Z3 orbifold trinification, MSSM and doublet-triplet splitting problem",

abstract = "A Z3 orbifold compactification of E8 x E 8′ heterotic string is considered toward a trinification SU(3)3 with three light families. The GUT scale VEVs of the SU(2)W x U(1)Y x SU(3)c singlet chiral fields in two sets of the trinification spectrum allow an acceptable symmetry breaking pattern toward MSSM. We show that a doublet-triplet splitting is related to the absence of a ΔB nonzero operator.",

keywords = "Superstring, Three families, Trinification, Z orbifold",

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AU - Kim, Jihn E.

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AB - A Z3 orbifold compactification of E8 x E 8′ heterotic string is considered toward a trinification SU(3)3 with three light families. The GUT scale VEVs of the SU(2)W x U(1)Y x SU(3)c singlet chiral fields in two sets of the trinification spectrum allow an acceptable symmetry breaking pattern toward MSSM. We show that a doublet-triplet splitting is related to the absence of a ΔB nonzero operator.

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KW - Trinification

KW - Z orbifold

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