Year: 2026
Type: preprint
Abstract: 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 local oscillation frequency and its drift can disentangle such corrections from an intrinsic mass contribution at leading slow-roll and adiabatic order.
Source: arXiv (Cornell University)
Authors: Aoki, Shuntaro, Yamaguchi, Masahide
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7223024451