Speaker
Description
The XENONnT project is located in the Gran Sasso laboratory in Italy.
Its main goal is the direct detection of dark matter, particularly
Weakly Interacting Massive Particles (WIMPs). It uses a dual-phase
liquid xenon time projection chamber (TPC) to identify particle
interactions. When a particle interacts with the target mass, light (S1
signal) and charge (S2 signal) are produced. The experiment is protected
by natural shielding, situated under 3600 meters of rock, and has an
active system to reduce background noise. The dense liquid xenon also
provides effective self-shielding, allowing the definition of a central
fiducial volume with minimal background noise.
Recently, XENONnT achieved a major breakthrough by observing solar
neutrinos from $^{8}B$ via coherent elastic neutrino-nucleus scattering
(CEvNS). This is a significant milestone, as it marks the first direct
detection of nuclear recoils caused by solar neutrinos using a dark
matter detector. The detection was made with a statistical significance
of 2.73σ, confirming the observation. This CEvNS measurement presents a
new opportunity for neutrino studies and paves the way for future
analyses that may lead to further exciting discoveries. XENONnT
continues to collect and analyze more data, raising the potential for
new advances in rare interaction searches.
