# 49th SLAC Summer Institute (SSI 2021)

16-27 August 2021
SLAC
America/Los_Angeles timezone

## Hubble Selection of the Weak Scale: possibility from QCD quantum phase transition

Not scheduled
20m
ZOOM videoconf (SLAC)

### Speaker

Mr TaeHun Kim (Seoul National University)

### Description

During inflation, a scalar field undergoes a quantum diffusion following the de-Sitter temperature. Aided by the greater Hubble rate at higher potential, the quantum diffusion can make the global distribution of the field climb up the potential. If the potential exhibits a criticality at the maximum point, the field distribution can be sharply located near there. We show a possibility from QCD phase transition that it can have a critical point near the weak scale, so that the Hubble selection" may account for the Higgs hierarchy problem.

### Primary author

Mr TaeHun Kim (Seoul National University)

### Co-author

Prof. Sunghoon Jung (Seoul National University)

### Presentation Materials

 poster_[TaeHun_Kim].pdf presentation_video_[TaeHun_Kim]