Abstract
It is shown that dimension five non-renormalizable interactions can produce light Dirac neutrinos in an extension of the minimal SU(5) GUT containing additional SU(5) singlets and global U(1) symmetries.
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Joshipura, A.S., Sarkar, U. Economic models for Dirac neutrinos in grand unified theories. Pramana - J Phys 29, 247–251 (1987). https://doi.org/10.1007/BF02845732
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DOI: https://doi.org/10.1007/BF02845732