Explaining PTA results by metastable cosmic strings from SO (10) GUT
In a recent paper (Phys. Rev. D 108 (2023) 095053), we have demonstrated that the 2023
PTA results, which hint at a stochastic gravitational wave (GW) background at nanohertz …
PTA results, which hint at a stochastic gravitational wave (GW) background at nanohertz …
Kinetic mixing, proton decay and gravitational waves in SO (10)
A bstract We present an SO (10) model in which a dimension five operator induces kinetic
mixing at the GUT scale between the abelian subgroups U (1) B− L and U (1) R. We discuss …
mixing at the GUT scale between the abelian subgroups U (1) B− L and U (1) R. We discuss …
Induced gravitational waves, metastable cosmic strings and primordial black holes in GUTs
We explore the cosmological and astrophysical implications of a realistic hybrid inflation
model based on flipped $ SU (5) $. The model contains superheavy metastable cosmic …
model based on flipped $ SU (5) $. The model contains superheavy metastable cosmic …