Héctor Gomez (Candidature CR1), "Search for the neutrinoless double-beta decay with SuperNEMO and its radiopurity control with the BiPo detector"

lundi 16 févr. 2015, 14:00 → 15:00 Europe/Paris

Amphi de Recherche (LPNHE)

The observation of neutrinoless double beta decay process could shed light on the measurement of the neutrino absolute mass and also elucidate the nature of these particles (Dirac or Majorana). However, this observation depends on what effective neutrino mass region could be explored. Next generation of experiments aims to explore the inverted hierarchy region, which corresponds to an effective neutrino mass down to 50 meV. One of these projects is the SuperNEMO experiment, an improved evolution of the already decommissioned NEMO-3 (which has given the best results of the double beta decay processes in several isotopes), that will operate at the Modane Underground Laboratory, as its predecessor. Currently under construction after a R&D phase (started in 2007), SuperNEMO must guarantee an extremely low background rate to reach the expected sensitivity. With this aim the collaboration has developed outstanding setups for the material radiopurity and radon concentration measurements. Among them, the BiPo detector, designed for the measurement of the double-beta emitter source foils, has become the most sensitive radiopurity detector of the world. A summary of the SuperNEMO experiment, its present status and the collaboration prospects about the installation, commissioning and operation of the experiment, will be presented. Among the project description a dedicated part to the BiPo detector and its role inside the SuperNEMO research program will be also presented.

Transparents HGomez_DBD_seminar_20150216.pdf