Mingyu Li L&S Sciences
Application of the TES as a Radioactive Decay Detector
Neutrino-less double beta decay is a process that is forbidden in the current Standard Model of particle physics since it violates lepton number conservation. If observed, this type of decay can provide insight into fundamental neutrino properties, such as whether neutrinos are Majorana or Dirac fermions (i.e. whether they are their own anti-particles). This decay also provides information on the neutrino mass hierarchy and its mass scale. Cryogenic Underground Observatory for Rare Events (CUORE) is a leading experiment in this search and its successor, CUORE Upgrade with Particle ID (CUPID) will dive into unexplored regions of parameter space in neutrino physics. This project will model a novel bi-layer Ir/Pt Transition Edge Sensor (TES) and develop a feasible method of harnessing the advantages of TES to demonstrate a low noise light detector with time resolution on the order of micro-seconds. The addition of TES will provide a reliable method of separate a and B(y) particle signals for CUPID to allow for a quieter background for our awaited hypothetical signal.