Speaker
Tomasz Dutka
(Korea Institute for Advanced Study)
Description
The gauge bosons of Pati–Salam do not mediate proton decay at the renormalisable level, and for this reason it is possible to construct scenarios in which SU(4) ⊗ SU(2)R is broken at relatively low scales. Such low-scale models, however, appear to generate dimension-5 operators that can give rise to nucleon decays at unacceptably large rates, even if the operators are suppressed by the Planck scale. This suggests a serious difficulty in constructing consistent models of Pati-Salam with low scale PS breaking.
Primary author
Tomasz Dutka
(Korea Institute for Advanced Study)
