Speaker
Description
PandaX-4T experiment has studied the ultra low energy data to enhance the sensitivity for light dark matter with sub-GeV mass. We combine ionization-only data and scintillation-ionization paired data to investigate five benchmark light dark matter interaction models, including spin-independent dark matter-nucleon interaction, spin-dependent dark matter-nucleon neutron-only and proton only interaction, and dark matter-electron interaction via heavy mediator and light mediator. Utilizing the commissioning run and the first scientific run, we set the most stringent limits in the mass range of approximately tens of MeV to several GeV. Especially for dark matter-electron interaction via light mediator, with the different treaments in signal model and reduced uncertainty in background model, the limit is greatly improved.
| Collaboration you are representing | PandaX |
|---|
