Demonstration of Single Barium Ion Sensitivity for Neutrinoless Double Beta Decay using Single Molecule Fluorescence Imaging
| Autor: | McDonald, A. D., Jones, B. J. P., Nygren, D. R., Adams, C., Alvarez, V., Azevedo, C. D. R., Benlloch-Rodrıguez, J. M., Borges, F. I. G. M., Botas, A., Carcel, S., Carrion, J. V., Cebrian, S., Conde, C. A. N., Dıaz, J., Diesburg, M., Escada, J., Esteve, R., Felkai, R., Fernandes, L. M. P., Ferrario, P., Ferreira, A. L., Freitas, E. D. C., Goldschmidt, A., Gomez-Cadenas, J. J., Gonzalez-Dıaz, D., Gutierrez, R. M., Guenette, R., Hafidi, K., Hauptman, J., Henriques, C. A. O., Hernandez, A. I., Morata, J. A. Hernando, Herrero, V., Johnston, S., Labarga, L., Laing, A., Lebrun, P., Liubarsky, I., Lopez-March, N., Losada, M., Martın-Albo, J., Martınez-Lema, G., Martınez, A., Monrabal, F., Monteiro, C. M. B., Mora, F. J., Moutinho, L. M., Vidal, J. Munoz, Musti, M., Nebot-Guinot, M., Novella, P., Palmeiro, B., Para, A., Perez, J., Querol, M., Repond, J., Renner, J., Riordan, S., Ripoll, L., Rodrıguez, J., Rogers, L., Santos, F. P., Santos, J. M. F. dos, Simon, A., Sofka, C., Sorel, M., Stiegler, T., Toledo, J. F., Torrent, J., Tsamalaidze, Z., Veloso, J. F. C. A., Webb, R., White, J. T., Yahlali, N. |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 120, 132504 (2018) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.120.132504 |
| Popis: | A new method to tag the barium daughter in the double beta decay of $^{136}$Xe is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dication (Ba$^{++}$) resolution at a transparent scanning surface has been demonstrated. A single-step photo-bleach confirms the single ion interpretation. Individual ions are localized with super-resolution ($\sim$2~nm), and detected with a statistical significance of 12.9~$\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. Comment: Accepted by PRL |
| Databáze: | arXiv |
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