Grand unified string theories with SU(3) gauge family symmetry

A. A. Maslikov; S. M. Sergeev; G. G. Volkov

doi:10.1016/0370-2693(94)91486-9

Grand unified string theories with SU(3) gauge family symmetry

A. A. Maslikov, S. M. Sergeev, G. G. Volkov

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

11 Citations (Scopus)

Abstract

In the framework of four dimensional heterotic superstring with free fermions we investigate the rank eight Grand Unified String Theories (GUST) which contain the SU(3)_H-gauge family symmetry. We explicitly construct GUSTs with gauge symmetry G = SU(5) × U(1) × (SU(3) × U(1))_H ⊂ SO(16) ⊂ E(8) in free complex fermion formulation. We solve the problem of the GUST symmetry breaking taking for the observable gauge symmetry the diagonal subgroup G^sym of rank 16 group G × G ⊂ SO(16) × SO(16) ⊂ E(8) × E(8). In this approach the observed electromagnetic charge Q^em can be viewed as a sum of two Q¹- and Q²-charges of each G-group. In this case the model spectrum does not contain particles with exotic fractional charges.

Original language	English
Pages (from-to)	319-328
Number of pages	10
Journal	Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	328
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(94)91486-9
Publication status	Published - 2 Jun 1994
Externally published	Yes

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title = "Grand unified string theories with SU(3) gauge family symmetry",

abstract = "In the framework of four dimensional heterotic superstring with free fermions we investigate the rank eight Grand Unified String Theories (GUST) which contain the SU(3)H-gauge family symmetry. We explicitly construct GUSTs with gauge symmetry G = SU(5) × U(1) × (SU(3) × U(1))H ⊂ SO(16) ⊂ E(8) in free complex fermion formulation. We solve the problem of the GUST symmetry breaking taking for the observable gauge symmetry the diagonal subgroup Gsym of rank 16 group G × G ⊂ SO(16) × SO(16) ⊂ E(8) × E(8). In this approach the observed electromagnetic charge Qem can be viewed as a sum of two Q1- and Q2-charges of each G-group. In this case the model spectrum does not contain particles with exotic fractional charges.",

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AU - Maslikov, A. A.

AU - Sergeev, S. M.

AU - Volkov, G. G.

PY - 1994/6/2

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N2 - In the framework of four dimensional heterotic superstring with free fermions we investigate the rank eight Grand Unified String Theories (GUST) which contain the SU(3)H-gauge family symmetry. We explicitly construct GUSTs with gauge symmetry G = SU(5) × U(1) × (SU(3) × U(1))H ⊂ SO(16) ⊂ E(8) in free complex fermion formulation. We solve the problem of the GUST symmetry breaking taking for the observable gauge symmetry the diagonal subgroup Gsym of rank 16 group G × G ⊂ SO(16) × SO(16) ⊂ E(8) × E(8). In this approach the observed electromagnetic charge Qem can be viewed as a sum of two Q1- and Q2-charges of each G-group. In this case the model spectrum does not contain particles with exotic fractional charges.

AB - In the framework of four dimensional heterotic superstring with free fermions we investigate the rank eight Grand Unified String Theories (GUST) which contain the SU(3)H-gauge family symmetry. We explicitly construct GUSTs with gauge symmetry G = SU(5) × U(1) × (SU(3) × U(1))H ⊂ SO(16) ⊂ E(8) in free complex fermion formulation. We solve the problem of the GUST symmetry breaking taking for the observable gauge symmetry the diagonal subgroup Gsym of rank 16 group G × G ⊂ SO(16) × SO(16) ⊂ E(8) × E(8). In this approach the observed electromagnetic charge Qem can be viewed as a sum of two Q1- and Q2-charges of each G-group. In this case the model spectrum does not contain particles with exotic fractional charges.

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Grand unified string theories with SU(3) gauge family symmetry

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