Speaker
Description
The Ricochet experiment aims at measuring the coherent elastic neutrino-nucleus scattering (CEνNS) of reactor antineutrinos at the Institut Laue-Langevin, ILL (Grenoble, France). Ricochet employs two detector technologies to measure the CEνNS: (1) germanium cryogenic calorimeters with neutron-transmutation-doped thermistors (called Cryocube); (2) cryogenic calorimeters with a superconducting target and a transition-edge sensor readout (called Q-array). The Cryocube exploits a combined readout of phonons and ionization to identify nuclear recoil events and reject other backgrounds (electron recoils). The Q-array will use pulse shape discrimination related to the different timescales of quasiparticle recombination and phonon relaxation for electron- and nuclear-recoils respectively. The cryogenic facility was installed at the end of 2023 and validated at the nuclear reactor. The detector commissioning started in February 2024 with a detector payload of three 40-gram germanium detectors. The design of the facility, the discovery sensitivity and the first results of the commissioning phase of the Ricochet experiment will be presented in this contribution.
| Poster prize | No |
|---|---|
| Given name | Valentina |
| Surname | Novati |
| First affiliation | CNRS-LPSC |
| Institutional email | valentina.novati@lpsc.in2p3.fr |
| Gender | Female |
| Collaboration (if any) | Ricochet |
