Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay

Abstract The nature of the neutrino is one of the major open questions in experimental nuclear and particle physics. The most sensitive known method to establish the Majorana nature of the neutrino is detection of the ultra-rare process of neutrinoless double beta decay. However, identification of o...

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Autores principales:	P. Thapa, I. Arnquist, N. Byrnes, A. A. Denisenko, F. W. Foss, B. J. P. Jones, A. D. McDonald, D. R. Nygren, K. Woodruff
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ca7ed19dd77f402e8906a75103e701b7
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spelling	oai:doaj.org-article:ca7ed19dd77f402e8906a75103e701b72021-12-02T15:09:00ZBarium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay10.1038/s41598-019-49283-x2045-2322https://doaj.org/article/ca7ed19dd77f402e8906a75103e701b72019-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-49283-xhttps://doaj.org/toc/2045-2322Abstract The nature of the neutrino is one of the major open questions in experimental nuclear and particle physics. The most sensitive known method to establish the Majorana nature of the neutrino is detection of the ultra-rare process of neutrinoless double beta decay. However, identification of one or a handful of decay events within a large mass of candidate isotope, without obfuscation by backgrounds is a formidable experimental challenge. One hypothetical method for achieving ultra- low-background neutrinoless double beta decay sensitivity is the detection of single 136Ba ions produced in the decay of 136Xe (“barium tagging”). To implement such a method, a single-ion-sensitive barium detector must be developed and demonstrated in bulk liquid or dry gaseous xenon. This paper reports on the development of two families of dry-phase barium chemosensor molecules for use in high pressure xenon gas detectors, synthesized specifically for this purpose. One particularly promising candidate, an anthracene substituted aza-18-crown-6 ether, is shown to respond in the dry phase with almost no intrinsic background from the unchelated state, and to be amenable to barium sensing through fluorescence microscopy. This interdisciplinary advance, paired with earlier work demonstrating sensitivity to single barium ions in solution, opens a new path toward single ion detection in high pressure xenon gas.P. ThapaI. ArnquistN. ByrnesA. A. DenisenkoF. W. FossB. J. P. JonesA. D. McDonaldD. R. NygrenK. WoodruffNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-13 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q P. Thapa I. Arnquist N. Byrnes A. A. Denisenko F. W. Foss B. J. P. Jones A. D. McDonald D. R. Nygren K. Woodruff Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
description	Abstract The nature of the neutrino is one of the major open questions in experimental nuclear and particle physics. The most sensitive known method to establish the Majorana nature of the neutrino is detection of the ultra-rare process of neutrinoless double beta decay. However, identification of one or a handful of decay events within a large mass of candidate isotope, without obfuscation by backgrounds is a formidable experimental challenge. One hypothetical method for achieving ultra- low-background neutrinoless double beta decay sensitivity is the detection of single 136Ba ions produced in the decay of 136Xe (“barium tagging”). To implement such a method, a single-ion-sensitive barium detector must be developed and demonstrated in bulk liquid or dry gaseous xenon. This paper reports on the development of two families of dry-phase barium chemosensor molecules for use in high pressure xenon gas detectors, synthesized specifically for this purpose. One particularly promising candidate, an anthracene substituted aza-18-crown-6 ether, is shown to respond in the dry phase with almost no intrinsic background from the unchelated state, and to be amenable to barium sensing through fluorescence microscopy. This interdisciplinary advance, paired with earlier work demonstrating sensitivity to single barium ions in solution, opens a new path toward single ion detection in high pressure xenon gas.
format	article
author	P. Thapa I. Arnquist N. Byrnes A. A. Denisenko F. W. Foss B. J. P. Jones A. D. McDonald D. R. Nygren K. Woodruff
author_facet	P. Thapa I. Arnquist N. Byrnes A. A. Denisenko F. W. Foss B. J. P. Jones A. D. McDonald D. R. Nygren K. Woodruff
author_sort	P. Thapa
title	Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
title_short	Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
title_full	Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
title_fullStr	Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
title_full_unstemmed	Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
title_sort	barium chemosensors with dry-phase fluorescence for neutrinoless double beta decay
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/ca7ed19dd77f402e8906a75103e701b7
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Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay

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