385 citations · 4.6k across the 138 of their papers we have counts for
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Dark matter and a new gauge boson through kinetic mixing
Eung Jin Chun, Jong-Chul Park, Stefano Scopel
We consider a hidden sector model of dark matter which is charged under a hidden U(1)_X gauge symmetry. Kinetic mixing of U(1)_X with the Standard Model hypercharge U(1)_Y is allow…
Leptogenesis origin of Dirac gaugino dark matter
Eung Jin Chun
The Dirac nature of the gauginos (and also the Higgsinos) can be realized in -symmetric supersymmetry models. In this class of models, the Dirac bino (or wino) with a small mixt…
Displaced Higgs production in type III seesaw
Priyotosh Bandyopadhyay, Eung Jin Chun
We point out that the type III seesaw mechanism introducing fermion triplets predicts peculiar Higgs boson signatures of displaced vertices with two b jets and one or two charged p…
Bridging flavour violation and leptogenesis in SU(3) family models
Lorenzo Calibbi, Eung Jin Chun, Liliana Velasco-Sevilla
We reconsider basic, in the sense of minimal field content, Pati-Salam x SU(3) family models which make use of the Type I see-saw mechanism to reproduce the observed mixing and mas…
Dark matter, mu problem and neutrino mass with gauged R-symmetry
Ki-Young Choi, Eung Jin Chun, Hyun Min Lee
We show that the mu problem and the strong CP problem can be resolved in the context of the gauged U(1)_R symmetry, realizing an automatic Peccei-Quinn symmetry. In this scheme, ri…