Speaker
Mr
Ryan Felkai
(IFIC)
Description
The NEXT experiment aims to identify a neutrinoless double-beta decay (0vbb) signal in 136Xenon employing a high pressure gaseous xenon (HPGXe) EL TPC. The detector techniques employed take advantage of a sub-percent energy resolution at Qbb combined with a topological reconstruction of events at this energy.
The detector NEXT-White (NEW) operating at the Canfranc Underground Laboratory allowed us, by using krypton calibration data, to perform the first simultaneous characterization of the electron transport properties in high pressure xenon at standard conditions for a 0vbb search.
Also, one of the major stakes in building a competitive ton scale HPGXe EL TPC is to reduce the high diffusion of pure xenon which limits the efficiency of the background rejection based on the topological reconstruction. We found that a helium-xenon gas mixture is a very promising alternative detection medium to reduce the diffusion while maintaining its excellent energy resolution.
| Authorship annotation | for the NEXT collaboration |
|---|---|
| Session and Location | Monday Session, Poster Wall #55 (Auditorium Gallery Right) |
| Poster included in proceedings: | yes |
Primary author
Mr
Ryan Felkai
(IFIC)
Co-authors
Dr
Ander Simón
(IFIC)
Dr
Francesc Monrabal
(UTA)
Prof.
Juan José Gómez Cadenas
(IFIC)
Dr
Michel Sorel
(IFIC)
