4 papers
Kinetic Isocurvature Perturbation
Kyu Jung Bae, Dhong Yeon Cheong, Jinn-Ouk Gong +2
We formulate a new class of primordial perturbations called , where the mass density of dark matter is constant relative to the photon…
Superheavy Supersymmetric Dark Matter for the origin of KM3NeT Ultra-High Energy signal
Yongsoo Jho, Seong Chan Park, Chang Sub Shin
We propose an explanation for the recently reported ultra-high-energy neutrino signal at KM3NeT, which shows no clear association with known astrophysical sources. While decaying d…
Parametric Coincidence in the Baryon to Dark Matter Ratio from Affleck-Dine Baryogenesis and UV Freeze-in Dark Matter
Jae Hyeok Chang, Chang Sub Shin, James Unwin
We highlight that the observed concurrence between the baryon and dark matter relic densities can be explained via a parametric coincidence between two distinct production mechanis…
What happens when supercooling is terminated by curvature flipping of the effective potential?
Tomasz P. Dutka, Tae Hyun Jung, Chang Sub Shin
We explore the nature of a certain type of supercooled phase transition, where the supercooling is guaranteed to end due to the curvature of the finite-temperature effective potent…