Summary
The symmetry breaking of the grand unified theorySO(10) can proceed through the branchesSU(5) orSU(2)L⊗SU(2)R⊗SU(4)c. We show that the latter is preferred over the former. This conclusion is in agreement with the recent findings of the other groups.
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Abbas, A. Which symmetry-breaking pattern ofSO(10) is better?. Nuov Cim A 106, 985–988 (1993). https://doi.org/10.1007/BF02786666
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DOI: https://doi.org/10.1007/BF02786666