Speaker
Satoshi Shirai
(Kavli IPMU)
Description
The positivity of the scattering amplitude is a necessary condition for a low-energy effective field theory (EFT) to be UV complete. The gravitational positivity bound provides quantitative "swampland" constraints for low-energy EFTs to be UV complete within quantum gravity. The condition can give significant constraint on a feebly interacting particle model and its UV completion. In this talk I will discuss the outlines of the gravitational positivity bound and its phenomenological application to a dark gauge sector.
Authors
Junsei Tokuda
Katsuki Aoki
Masahito Yamazaki
(University of Tokyo)
Ryo Saito
Satoshi Shirai
(Kavli IPMU)
Sota Sato
(Kobe University)
Toshifumi Noumi
