Z2 orbifold compactification of heterotic string and 6D SO(16) and E7 × SU(2) flavor unification models

Kang Sin Choi; Jihn E. Kim

doi:10.1016/S0370-2693(02)03104-0

Z₂ orbifold compactification of heterotic string and 6D SO(16) and E₇ × SU(2) flavor unification models

Kang Sin Choi, Jihn E. Kim

Scranton Honors Program

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

9 Scopus citations

Abstract

A Z₂ orbifold compactification of the heterotic string is considered. The resulting 6D GUT groups can be SO(16) or E7 x SU(2) plus some hidden sector groups. The N = 4 supersymmetry is reduced to N = 2. In particular, the SO(16) 6D model with one spinor representation 128 can reduce to the previous 5D SO(16) or SO(14) family unification models after compactifying the sixth dimension. To obtain one spinor, we have to take into account the left-over center of SO(16). We also comment on the E7 × SU(2) model.

Original language	English
Pages (from-to)	81-86
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	552
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)03104-0
State	Published - 16 Jan 2003

Bibliographical note

Funding Information:
We thank Paul Frampton and Kyuwan Hwang for useful discussions. One of us (J.E.K.) thanks Humboldt Foundation for the award. This work is supported in part by the BK21 program of Ministry of Education, and the KOSEF Sundo Grant.

Keywords

6D SO(16) GUF
Orbifold
SU(2) holonomy
Superstring

Access to Document

10.1016/S0370-2693(02)03104-0

Cite this

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title = "Z2 orbifold compactification of heterotic string and 6D SO(16) and E7 × SU(2) flavor unification models",

abstract = "A Z2 orbifold compactification of the heterotic string is considered. The resulting 6D GUT groups can be SO(16) or E7 x SU(2) plus some hidden sector groups. The N = 4 supersymmetry is reduced to N = 2. In particular, the SO(16) 6D model with one spinor representation 128 can reduce to the previous 5D SO(16) or SO(14) family unification models after compactifying the sixth dimension. To obtain one spinor, we have to take into account the left-over center of SO(16). We also comment on the E7 × SU(2) model.",

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