PT Journal
AU Fileviez Perez, P
   Murgui, C
   Plascencia, AD
TI Axion dark matter, proton decay and unification
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2020
BP 091
EP 18pp
VL 01
IS 1
DI 10.1007/JHEP01(2020)091
LA English
DE Beyond Standard Model; Cosmology of Theories beyond the SM; GUT
AB We discuss the possibility to predict the QCD axion mass in the context of grand unified theories. We investigate the implementation of the DFSZ mechanism in the context of renormalizable SU(5) theories. In the simplest theory, the axion mass can be predicted with good precision in the range m(a) = (2-16) neV, and there is a strong correlation between the predictions for the axion mass and proton decay rates. In this context, we predict an upper bound for the proton decay channels with antineutrinos, tau(p -> K+(nu) over bar) less than or similar to 4 x 10(37) yr and tau(p -> pi(+)(nu) over bar) less than or similar to 2 x 10(36) yr. This theory can be considered as the minimal realistic grand unified theory with the DFSZ mechanism and it can be fully tested by proton decay and axion experiments.
ER