P. Ko

activity

20242026

collaborators

Showing 2025Show all

3 papers · 1 filter

hep-ph2025

$B^{+} \to K^{+} ν ν ˉ$ Excess and DM semi-annihilation

Jongkuk Kim, Pyungwon Ko

In 2023, Belle II collaboration announced the observarion of the $B^{+} \to K^{+} ν ν ˉ$ decay channel for the first time. This decay channel provides a clean signal with high precisi…

hep-ph2025

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 $U (1)_{D}$ gauge extension of the Standard Model (SM). The associated da…

hep-ph2025

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…

B+→K+ννˉ Excess and DM semi-annihilation

Low-reheating scenario in dark Higgs inflation and its impact on dark photon dark matter production

Linking the KM3-230213A Neutrino Event to Dark Matter Decay and Gravitational Wave signals

$B^{+} \to K^{+} ν ν ˉ$ Excess and DM semi-annihilation