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hep-ph2025
Composite Hybrid Inflation : Primordial Black Holes and Stochastic Gravitational Waves
Giacomo Cacciapaglia, Dhong Yeon Cheong, Aldo Deandrea +4
We investigate the production of primordial black holes and gravitational waves in composite hybrid inflation. Starting from an effective chiral Lagrangian with a dilaton and pions…
hep-ph2025
Are there minimal exceptional aGUTs from stable 5D orbifolds?
Giacomo Cacciapaglia, Alan S. Cornell, Aldo Deandrea +4
In analysing five dimensional orbifolds with exceptional gauge groups, we seek to find stable vacua configurations which satisfy the minimal requirements for asymptotic grand unifi…