Feb 18 – 26, 2021
Europe/Rome timezone

The FBI concept in the context of Ba-tagging for neutrinoless double beta decay events

Feb 23, 2021, 11:40 AM
Room 1 (https://unipd.link/NeuTel-ParallelRoom1)

Room 1


Parallel Flash talk Neutrino Masses and Mixings Double Beta decays and Neutrino Masses


Prof. Zoraida Freixa (University of the Basque Country (UPV/EHU))


It has been recently shown that the identification of the single positively-charged ion Ba2+ produced in double beta decay events in Xe-136 may be possible in a high-pressure gas TPC using molecular indicators. The NEXT collaboration is pursuing an intense R&D program geared towards a future detector able to detect “tag” the Ba2+ produced in such events, a technique that could lead to an essentially background-free neutrinoless double beta decay experiment. In this talk, I will describe the R&D program of the NEXT collaboration. Particular emphasis will be given to the BOLD program, based on a new type of fluorescent bicolor indicators (FBI) capable of separating chelated indicators following Ba2+ capture from unchelated ones, with a very large signal to noise ratio.

Collaboration name NEXT

Primary authors

Prof. Zoraida Freixa (University of the Basque Country (UPV/EHU)) Mr Borja Aparicio (University of the Basque Country (UPV/EHU)) Dr Ivan Rivilla (Donostia International Physics Center (DIPC)) Dr Francesc Monrabal (Donostia International Physics Center (DIPC)) Mr Pablo Herrero (Donostia International Physics Center (DIPC)) Dr Celia Rogero (Materials Physics Center CFM (CSIC-UPV/EHU)) Prof. Fernando P. Cossío (University of the Basque Country (UPV/EHU)) Prof. Juan J. Gómez-Cadenas (Donostia International Physics Center (DIPC))

Presentation materials