TDLI-PKU BSM Workshop 2023: Looking to the Sky

A new first-order QCD phase transition in the early universe and gravitational waves

2 Aug 2023, 13:30

35m

Tsung-Dao Lee Institute/N6F-N600 - Lecture Room (Tsung-Dao Lee Institute)

Contributed talks (1)

Speaker

Sichun Sun (Beijing Institute of Technology)

Description

We extend the Standard Model quantum chromodynamics theory (QCD) theory and naturally realize a first-order phase transition at high temperatures above 1 GeV without running into current constraints from both heavy ion colliders and early cosmology. This phase transition is from a non-perturbative effect of the QCD and can have a great impact on the early universe, including gravitational wave signals detectable for future space interferometers.