Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

R&D toward future barium tagging phases of the NEXT program

Jul 9, 2022, 12:30 PM
Room 2 (Italia)

Room 2 (Italia)

Parallel Talk Neutrino Physics Neutrino Physics


Pablo Herrero Gomez (Donostia International Physics Center)


The NEXT collaboration is pursuing a phased program to search for neutrinoless double beta decay (0nubb) of 136Xe using high pressure xenon gas time projection chambers. The power of electroluminescent xenon gas TPCs for 0nubb derives from their excellent energy resolution (<1%FWHM), and the topological classification of two electron events, unique among scalable 0nubb technologies. Xenon gas detectors also also offer a further opportunity: the plausible implementation of single barium daughter ion tagging, an approach that may reduce radiogenic and cosmogenic backgrounds by orders of magnitude and unlock sensitivities that extend beyond the inverted neutrino mass ordering. This talk will cover advances in the development of single ion barium tagging for high pressure xenon gas detectors and summarize R&D towards large scale future phases of the NEXT program.

In-person participation Yes

Primary author

Ben Jones (University of Texas at Arlington)

Presentation materials