20 citations · 38 across the 16 of their papers we have counts for
9 papers · 1 filter
Hadrophilic inelastic freeze-in dark matter in gauge extension and the high energy LZ event
Xiao-Gang He, Xuan Hong, Sk Jeesun
The recent observation of a single event at nuclear recoil energy keV by the LZ collaboration has prompted dark matter (DM) model builders to explore new physics ex…
Atmospheric neutrino up-scattering explanation of LZ 2026 excess
Sk Jeesun, Anirban Majumdar
The recent observation of an isolated nuclear recoil at keV energy by the LUX-ZEPLIN (LZ) experiment has motivated the community to look for a new physics explana…
MeV Electrophilic Axion-like Particles from Sun
Shao-Feng Ge, Sk Jeesun, Tao Li
This work explores the production of an MeV-scale electrophilic axion-like particles (ALPs) by utilizing the monochromatic 5.5MeV photon resulting from the nuclear fusion processes…
Shedding Stray Light on Decaying Light Dark Matter: Constraints from NuSTAR X-ray Observations
Sk Jeesun, Tanmoy Kumar
Light dark matter (DM) (mass keV) remains challenging to detect in several ongoing indirect detection experiments due to threshold limitations. Recent o…
Freeze-in vector dark matter at low reheating temperature
Dilip Kumar Ghosh, Sourav Gope, Xiao-Gang He +2
The freeze-in mechanism for dark matter (DM) requires extremely feeble interactions with the Standard Model (SM), preventing thermal equilibrium in the early Universe and typically…
CMB signatures of gravity-mediated dark radiation in
Anish Ghoshal, Sk Jeesun, Kazunori Kohri
Measurement of in the CMB (Cosmic Microwave Background) observations, like Planck 2018 and BBN (Big Bang Nucleosynthesis) has already set stringent constraints on the…
Primordial black holes as cosmic accelerators of light dark matter: Novel direct detection constraints
Sk Jeesun, Anirban Majumdar, Rahul Srivastava
Current multi-tonne-scale dark matter (DM) detectors are largely incapable of detecting light dark matter from the Galactic halo due to the energy threshold limitations of their re…
Cosmic-ray-electron boosted light dark matter: Implications of LZ 2025 data
Sk Jeesun, Anirban Majumdar
Current multiton detectors put stringent constraints on the GeV-scale galactic dark matter, pushing the allowed cross section almost toward the neutrino fog, yet remain mostly inse…
ALP and boson at the Electron-Ion collider
Amit Adhikary, Dilip Kumar Ghosh, Sk Jeesun +1
We study the sensitivity of the upcoming electron-ion (EIC) collider to purely electrophilic new physics in the GeV mass range. Within an effective field theory framework, we consi…