2nd Topics of Particle, Astro and Cosmo Frontiers (TOPAC 2024)

Session

GW

1 Jun 2024, 13:30

207 Southeast Col. (东南院207)

Conveners

GW

• Huai-Ke Guo

12. Revisiting the fermion-field non-topological solitons and primordial black holes

Prof. Ke-Pan Xie (Beihang University)

01/06/2024, 13:30

Oral talk

-

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

Sichun Sun (Beijing Institute of Technology)

01/06/2024, 13:55

We discuss possible ways of extending the Standard Model quantum chromodynamics theory (QCD) theory and 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. The phase transition is from a non-perturbative effect of the QCD and can have a great impact on the early universe, including...

13. Graviton-photon conversion in atomic electric fields and high frequency gravitational wave detections

Gui-Rong Liang (China University of Mining and Technology)

01/06/2024, 14:20

Oral talk

We study graviton-photon conversion in potential ground-based experiments. From graviton to photon transition, we calculate the cross section of graviton-atom interaction in the presence of spherical atomic electric fields; the obtained results hold for graviton energy around 100 keV to 1 GeV, and would be enhanced along the coherent length in extremely high frequencies; thus it gives a chance...