15 citations · 15 across the 7 of their papers we have counts for
7 papers
Wave-envelope dark matter beyond the monochromatic paradigm
Yechan Kim, Hye-Sung Lee
Ultralight dark matter searches widely assume that signals are monochromatic, with a single frequency set by the mass. This assumption is generally violated in the presence of fiel…
Oscillating scalar potential and its implications for cosmic neutrino background searches
Yechan Kim, Hye-Sung Lee
We propose a novel mechanism in which an external oscillatory wave modulates the mass-squared term of a scalar potential, periodically switching its sign. As a result of this "pote…
Dark gauge-mediated supersymmetry breaking with a massless dark photon
Brian Batell, Yechan Kim, Hye-Sung Lee +1
We study dark gauge-mediated supersymmetry breaking (dark GMSB) in a theory with a new unbroken local symmetry and massless dark photon. Messenger fields charged under b…
Refined approaches in second leptogenesis for the baryon-lepton asymmetry discrepancy
YeolLin ChoeJo, Kazuki Enomoto, Yechan Kim +1
The temperature-dependent mass of the heavy neutrino can lead to the second leptogenesis occurring below the electroweak scale, potentially explaining the large discrepancy between…
Non-gravitational signals of dark energy under a gauge symmetry
Kunio Kaneta, Hye-Sung Lee, Jiheon Lee +1
We investigate non-gravitational signals of dark energy within the framework of gauge symmetry in the dark energy sector. Traditionally, dark energy has been primarily studied thro…
Second leptogenesis: Unraveling the baryon-lepton asymmetry discrepancy
YeolLin ChoeJo, Kazuki Enomoto, Yechan Kim +1
We propose a novel scenario to explain the matter-antimatter asymmetry by twofold leptogenesis, wherein heavy Majorana neutrinos exhibit temperature-dependent masses and engage in…
Searching for new physics effects in future mass and determinations
Hooman Davoudiasl, Kazuki Enomoto, Hye-Sung Lee +2
We investigate the phenomenology of the dark boson, , which is associated with a new Abelian gauge symmetry and couples to the standard model particles via kinetic mixing…