5 papers
Pseudo-scalar dark matter from a broken gauged symmetry
Junho Kang, Sarif Khan, Jongkuk Kim +1
We propose a novel model for pseudo-scalar dark matter (PSDM) by extending the Standard Model (SM) with a dark gauged symmetry, but without dark charged fermions. We impos…
Decaying vector dark matter with low reheating temperature for KM3NeT signal and its impact on gravitational waves
Sarif Khan, Jongkuk Kim, Hyun Min Lee
We propose a new model to explain the KM3NeT neutrino event through a low reheating scenario with a suppression in the GW spectrum originating from cosmic string networks. To achie…
Neutrino masses and mixed dark matter from doublet and singlet scalars
Jongkuk Kim, Seong-Sik Kim, Hyun Min Lee +1
We consider the extension of the Standard Model with an inert scalar doublet, three right-handed neutrinos, and singlet scalar fields, and . In this model, neutrino masses…
Higgs portal vector dark matter at a low reheating temperature
Sarif Khan, Jongkuk Kim, Hyun Min Lee
In this study, we explore vector dark matter (DM) production in the early Universe focusing on a scenario with a low reheating temperature. One can achieve low reheat temperature i…
Small Neutrino Masses from a Decoupled Singlet Scalar Field
Jongkuk Kim, Seong-Sik Kim, Hyun Min Lee +1
We propose a unified solution with discrete symmetry for small neutrino masses and stability of dark matter. The Standard Model is extended with an inert doublet scalar, a da…