240 citations · 1k across the 31 of their papers we have counts for
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hep-ph2019★ 17 cited
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…
hep-th2019★ 7 cited
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…
hep-ph2019★ 49 cited
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…