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Grand unified model without domain walls and with nontrivial charge assignment
Phys. Rev. D 29, 783(R) – Published 15 February, 1984
DOI: https://doi.org/10.1103/PhysRevD.29.783
Abstract
We searched for the grand unified models based on the group which do not have the domain-wall problem with automatic U symmetry and which can have nontrivial charge assignment and found only one in SU(9).
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