Speaker
Description
The $\nu$GeN and RED-100 experimental setups deployed at Kalinin Nuclear Power Plant (KNPP) constitute sub-keV threshold detectors suitable for probing hypothetical beyond Standard Model particles known as millicharged particles ($\chi_{q}$). The setups leverage intense reactor antineutrino fluxes from a 3.1 GWth reactor with the aim to observe coherent elastic neutrino nucleus scattering (CE$\nu$NS). $\nu$GeN employs a 0.29 keV threshold point-contact Ge spectrometer situated 11m from the center of the reactor core, leveraging exceptional sensitivity to low-ionization signals. RED-100 is a 0.25 keV threshold two-phase Xe emission detector situated 19m away from the center of the reactor core, capable of detecting electron signals from low-energy interactions. Nuclear reactors are powerful sources of gamma-rays, and the proximity of these setups to a high-intensity reactor source allows for the probe of parameter space for $\chi_{q}$ mass and charge fraction ($m_{\chi_{q}},~\delta$) based on comparison of reactor ON and reactor OFF data.
