195 citations · 1k across the 23 of their papers we have counts for
3 papers · 1 filter
Coherent relaxion dark matter
Abhishek Banerjee, Hyungjin Kim, Gilad Perez
We show that relaxion, that addresses the hierarchy problem, can account for the observed dark matter (DM) relic density. The setup is similar to the case of axion DM models topped…
Self-heating of Strongly Interacting Massive Particles
Ayuki Kamada, Hee Jung Kim, Hyungjin Kim
It was recently pointed out that semi-annihilating dark matter (DM) may experience a novel temperature evolution dubbed as self-heating. Exothermic semi-annihilation converts the D…
Late-time magnetogenesis driven by ALP dark matter and dark photon
Kiwoon Choi, Hyungjin Kim, Toyokazu Sekiguchi
We propose a mechanism generating primordial magnetic fields after the annihilations. Our mechanism involves an ultra-light axion-like particle (ALP) which constitutes the…