64 citations · 108 across the 3 of their papers we have counts for
9 papers
Precision axion physics with running axion couplings
Kiwoon Choi, Sang Hui Im, Hee Jung Kim +1
We study the renormalization group running of axion couplings while taking into account that the Standard Model can be extended to its supersymmetric extension at a certain energy…
Recent Progress in the Physics of Axions and Axion-Like Particles
Kiwoon Choi, Sang Hui Im, Chang Sub Shin
The axion is a light pseudoscalar particle postulated to solve issues with the Standard Model, including the strong CP problem and the origin of dark matter. In recent years, there…
Supersymmetric Clockwork Axion Model and Axino Dark Matter
Kyu Jung Bae, Sang Hui Im
Implications of supersymmetrizing the clockwork axions are studied. Supersymmetry ensures that the saxions and axinos have the same pattern of the coupling hierarchy as the clockwo…
Freeze-in Axion-like Dark Matter
Sang Hui Im, Kwang Sik Jeong
We present an interesting Higgs portal model where an axion-like particle (ALP) couples to the Standard Model sector only via the Higgs field. The ALP becomes stable due to CP inva…
Axion clockworks from heterotic M-theory: the QCD-axion and its ultra-light companion
Sang Hui Im, Hans Peter Nilles, Marek Olechowski
A previously discussed clockwork mechanism within heterotic M-theory is applied to its axion landscape. We identify a unique candidate for a QCD-axion with a decay constant in the…
Light Higgs bosons in the general NMSSM
Kiwoon Choi, Sang Hui Im, Kwang Sik Jeong +1
Physics beyond the Standard Model (SM) may manifest itself as small deviations from the SM predictions for Higgs signal strengths at 125 GeV. Then, a plausible and interesting poss…