Article ID Journal Published Year Pages File Type
1840185 Nuclear Physics B 2016 22 Pages PDF
Abstract

We calculate the high and low scale threshold corrections to the D=6D=6 proton decay mode in supersymmetric SU(5)SU(5) grand unified theories with higher-dimensional representation Higgs multiplets. In particular, we focus on a missing-partner model in which the grand unified group is spontaneously broken by the 75-dimensional Higgs multiplet and the doublet–triplet splitting problem is solved. We find that in the missing-partner model the D=6D=6 proton decay rate gets suppressed by about 60%, mainly due to the threshold effect at the GUT scale, while the SUSY-scale threshold corrections are found to be less prominent when sfermions are heavy.

Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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