TY  - JOUR
AU  - NEXT Collaboration (Novella, P. et al
AU  - Carcel, S.
AU  - Carrion, J. V.
AU  - Diaz, J.
AU  - Martin-Albo, J.
AU  - Martinez, A.
AU  - Martinez-Vara, M.
AU  - Muñoz Vidal, J.
AU  - Palmeiro, B.
AU  - Querol, M.
AU  - Romo-Luque, C.
AU  - Sorel, M.
AU  - Uson, A.
AU  - Yahlali, N.
PY  - 2022
DA  - 2022//
TI  - Measurement of the Xe-136 two-neutrino double-beta-decay half-life via direct background subtraction in NEXT
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 055501
EP  - 8pp
VL  - 105
IS  - 5
PB  - Amer Physical Soc
AB  - We report a measurement of the half-life of the Xe-136 two-neutrino double-beta decay performed with a novel direct-background-subtraction technique. The analysis relies on the data collected with the NEXT-White detector operated with Xe-136-enriched and Xe-136-depleted xenon, as well as on the topology of double-electron tracks. With a fiducial mass of only 3.5 kg of Xe, a half-life of 2.34(-0.46)(+0.80) (stat)(-0.17)(+0.30) (sys) x 10(21) yr is derived from the background-subtracted energy spectrum. The presented technique demonstrates the feasibility of unique background-model-independent neutrinoless double-beta-decay searches.
SN  - 2469-9985
UR  - https://arxiv.org/abs/2111.11091
UR  - https://doi.org/10.1103/PhysRevC.105.055501
DO  - 10.1103/PhysRevC.105.055501
LA  - English
N1  - WOS:000810927800003
ID  - NEXTCollaborationNovella_etal2022
ER  -