3 papers
hep-th2026
Spectral Suppression of Asymptotic States in Supersymmetric QFT on de Sitter Backgrounds
Stefano Bellucci, Stefania De Matteo
We investigate the fate of asymptotic particle states in supersymmetric quantum field theories on de Sitter backgrounds, distinguishing algebraic field content from localized LSZ-l…
hep-th2026
A structural criterion for asymptotic states in Supersymmetry
Stefano Bellucci, Stefania De Matteo
The occurrence of a field in the formal structure of a quantum field theory does not by itself establish the existence of a corresponding asymptotic particle. We develop a structur…
hep-th2026
Structural Origin of the Gravitino Mass Term: Geometric and Supergravity Perspectives
Stefano Bellucci, Stefania De Matteo
We identify a minimal superspace projector that uniquely selects the Rarita Schwinger mass bilinear in four-dimensional N=1 supergravity. Working in a reduced superspace with a sin…