The NEXT project to discover neutrinoless double beta decay

Francesc Monrabal

Université de Texas, Arlington

jeudi 30 mars 2017

The NEXT project proposes the technology of High Pressure Xenon Chambers (HPXe) with electroluminescent (EL) readout as a tool to explore the nature of the neutrino through the search for neutrinoless double beta decays in Xe-136. The project started with the successful DBDM and DEMO prototypes. In Fall 2016, a 10-kg radiopure detector, called NEW has started operation at the Canfranc Underground Laboratory in Spain. The next foreseen step is a 100-kg class detector, NEXT-100, capable to reach a background count of less than one count per year in the ROI. In the talk I will present the status of NEW and NEXT-100. I will also discuss how the technology can be extrapolated to the ton scale in order to explore the inverse hierarchy with a future HPXe-EL capable of achieving less than one background count per ton in the ROI.