5 papers
Unraveling dark Higgs mechanism via dark photon production at an e^+ e^- collider
Song Li, Jin Min Yang, Mengchao Zhang +2
In the phenomenology study of dark photon, its mass origin is usually not under concern. However, in theory construction its mass is often generated via a dark Higgs mechanism, whi…
Can a secluded self-interacting dark sector generate detectable gravitational waves?
Song Li, Jin Min Yang, Mengchao Zhang +2
In this work we study the possibility to detect the gravitational waves generated by a secluded self-interacting dark sector. ``Secluded'' means that the dark sector has almost no…
Growth of Gravitational Wave Spectrum from Sound Waves in a Universe with Generic Expansion Rate
Yang Xiao, Huai-Ke Guo, Jiahang Hu +2
We derive a compact analytical expression for the growth factor , which characterizes how the gravitational wave spectrum sourced by sound waves evolves in a universe with a gen…
HL-LHC sensitivity to higgsinos from natural SUSY with gravitino LSP
Jian-Peng Dai, Song Li, Jin-Min Yang +3
In the realm of natural supersymmetric models, higgsinos are typically the lightest electroweakinos. In gauge-mediated supersymmetry breaking models, the lightest higgsino-dominate…
Estimating the Uncertainty of Cosmological First Order Phase Transitions with Numerical Simulations of Bubble Nucleation
Huai-Ke Guo, Song Li, Yang Xiao +2
In order to study the validity of analytical formulas used in the calculation of characteristic physical quantities related to vacuum bubbles, we conduct several numerical simulati…