TY - JOUR AU - NEXT Collaboration (McDonald, A. D. et al AU - Alvarez, V. AU - Benlloch-Rodriguez, J. M. AU - Botas, A. AU - Carcel, S. AU - Carrion, J. V. AU - Diaz, J. AU - Felkai, R. AU - Ferrario, P. AU - Gomez-Cadenas, J. J. AU - Laing, A. AU - Liubarsky, I. AU - Lopez-March, N. AU - Martinez, A. AU - Muñoz Vidal, J. AU - Musti, M. AU - Nebot-Guinot, M. AU - Novella, P. AU - Palmeiro, B. AU - Perez, J. AU - Renner, J. AU - Rodriguez, J. AU - Simon, A. AU - Sofka, C. AU - Sorel, M. AU - Torrent, J. AU - Yahlali, N. PY - 2018 DA - 2018// TI - Demonstration of Single-Barium-Ion Sensitivity for Neutrinoless Double-Beta Decay Using Single-Molecule Fluorescence Imaging T2 - Phys. Rev. Lett. JO - Physical Review Letters SP - 132504 EP - 6pp VL - 120 IS - 13 PB - Amer Physical Soc AB - A new method to tag the barium daughter in the double-beta decay of Xe-136 is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dication (Ba++) resolution at a transparent scanning surface is demonstrated. A single-step photobleach confirms the single ion interpretation. Individual ions are localized with superresolution (similar to 2 nm), and detected with a statistical significance of 12.9 sigma over backgrounds. This lays the foundation for a new and potentially background-free neutrinoless double-beta decay technology, based on SMFI coupled to high pressure xenon gas time projection chambers. SN - 0031-9007 UR - http://arxiv.org/abs/1711.04782 UR - https://doi.org/10.1103/PhysRevLett.120.132504 DO - 10.1103/PhysRevLett.120.132504 LA - English N1 - WOS:000428243400005 ID - NEXTCollaborationMcDonald_etal2018 ER -