25 citations · 37 across the 10 of their papers we have counts for
11 papers
Low-reheating scenario in dark Higgs inflation and its impact on dark photon dark matter production
Sarif Khan, Jinsu Kim, Pyungwon Ko
We investigate dark matter (DM) phenomenology and cosmic inflation within a unified framework based on a dark gauge extension of the Standard Model (SM). The associated da…
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…
Constraining Inflation via FIMP dark matter using the -function with collider implications
Sarif Khan, Sourov Roy, Ananya Tapadar
The present study connects inflation and freeze-in type dark matter (DM) within the same setup. Although the observables in these two phenomena lie at vastly different energy scale…
Evading Dark Matter Bounds through NLSP-Assisted Freeze-Out with Long-Lived Signatures
Sarif Khan
In this work, we explore a conversion-driven freeze-out scenario, where the next-to-lightest stable particle (NLSP) sets the dark matter (DM) abundance through the process ``NLSP S…
Multicomponent Dark Matter with Collider Implications
Laura Covi, Shyamashish Dey, Sarif Khan +1
The present work aims to study an extension of the Standard Model (SM) that addresses the prominent SM shortcomings, i.e., can explain the neutrino mass, the dark matter (DM) conte…
Linking the KM3-230213A Neutrino Event to Dark Matter Decay and Gravitational Wave signals
Sarif Khan, Jongkuk Kim, Pyungwon Ko
The KM3NeT collaboration recently reported the detection of an ultra-high-energy (UHE) neutrino event, dubbed KM3-230213A. This is the first observed neutrino event with energy of…
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…
Multi-component dark matter and Galactic 511 keV -ray emission
Sarif Khan, Jinsu Kim, Jongkuk Kim +1
We study multi-component dark matter scenarios and the Galactic 511 keV -ray emission line signal in the framework of a local, dark extension of the Standard Model. A l…
Axion Dark Matter and additional BSM aspects in an extended 2HDM setup
Giorgio Arcadi, Sarif Khan
We illustrate and discuss the phenomenology of a model featuring a two-Higgs doublet sector augmented by two singlet scalars. The gauge symmetry group is extended as well w…
Interplay between Higgs inflation and dark matter models with dark gauge symmetry
Sarif Khan, Jinsu Kim, Pyungwon Ko
We investigate dark matter phenomenology and Higgs inflation in a dark -extended model. The model features two dark matter candidates, a dark fermion and a dark vector boso…
A two-component vector WIMP -- fermion FIMP dark matter model with an extended seesaw mechanism
Francesco Costa, Sarif Khan, Jinsu Kim
We consider an extension of the Standard Model that explains the neutrino masses and has a rich dark matter phenomenology. The model has two dark matter candidates, a vector WIMP a…