Prépublication
· 2026 arXiv
EN
Hubble Susceptibility: Beyond Effective-Mass Spectroscopy in the Cosmological Collider
In this note, we introduce the Hubble susceptibility of cosmological-collider masses, encoded in the scale dependence of the squeezed-limit oscillation. Heavy fields generically receive Hubble-induced mass corrections during inflation, and we show that the loc...
Shuntaro Aoki, Masahide Yamaguchi
#hep-th