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An assay-based background projection for the MAJORANA DEMONSTRATOR using Monte Carlo Uncertainty Propagation

Fuente: arXiv

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Bibliographic Details
Main Authors:	Arnquist, I. J., Avignone III, F. T., Barabash, A. S., Barton, C. J., Bhimani, K. H., Blalock, E., Bos, B., Busch, M., Caldwell, T. S., Chan, Y. -D., Christofferson, C. D., Chu, P. -H., Clark, M. L., Cuesta, C., Detwiler, J. A., Efremenko, Yu., Ejiri, H., Elliott, S. R., Fuad, N., Giovanetti, G. K., Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Haufe, C. R., Henning, R., Aguilar, D. Hervas, Hoppe, E. W., Hostiuc, A., Kidd, M. F., Kim, I., Kouzes, R. T., Lannen V, T. E., Li, A., López-Castaño, J. M., Martin, R. D., Massarczyk, R., Meijer, S. J., Oli, T. K., Paudel, L. S., Pettus, W., Poon, A. W. P., Radford, D. C., Reine, A. L., Rielage, K., Ruof, N. W., Schaper, D. C., Schleich, S. J., Tedeschi, D., Varner, R. L., Vasilyev, S., Watkins, S. L., Wilkerson, J. F., Wiseman, C., Xu, W., Yu, C. -H.
Format:	Preprint
Published:	2024
Subjects:	Nuclear Experiment Instrumentation and Detectors
Online Access:	Acceder al recurso
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author	Arnquist, I. J. Avignone III, F. T. Barabash, A. S. Barton, C. J. Bhimani, K. H. Blalock, E. Bos, B. Busch, M. Caldwell, T. S. Chan, Y. -D. Christofferson, C. D. Chu, P. -H. Clark, M. L. Cuesta, C. Detwiler, J. A. Efremenko, Yu. Ejiri, H. Elliott, S. R. Fuad, N. Giovanetti, G. K. Green, M. P. Gruszko, J. Guinn, I. S. Guiseppe, V. E. Haufe, C. R. Henning, R. Aguilar, D. Hervas Hoppe, E. W. Hostiuc, A. Kidd, M. F. Kim, I. Kouzes, R. T. Lannen V, T. E. Li, A. López-Castaño, J. M. Martin, R. D. Massarczyk, R. Meijer, S. J. Oli, T. K. Paudel, L. S. Pettus, W. Poon, A. W. P. Radford, D. C. Reine, A. L. Rielage, K. Ruof, N. W. Schaper, D. C. Schleich, S. J. Tedeschi, D. Varner, R. L. Vasilyev, S. Watkins, S. L. Wilkerson, J. F. Wiseman, C. Xu, W. Yu, C. -H.
author_facet	Arnquist, I. J. Avignone III, F. T. Barabash, A. S. Barton, C. J. Bhimani, K. H. Blalock, E. Bos, B. Busch, M. Caldwell, T. S. Chan, Y. -D. Christofferson, C. D. Chu, P. -H. Clark, M. L. Cuesta, C. Detwiler, J. A. Efremenko, Yu. Ejiri, H. Elliott, S. R. Fuad, N. Giovanetti, G. K. Green, M. P. Gruszko, J. Guinn, I. S. Guiseppe, V. E. Haufe, C. R. Henning, R. Aguilar, D. Hervas Hoppe, E. W. Hostiuc, A. Kidd, M. F. Kim, I. Kouzes, R. T. Lannen V, T. E. Li, A. López-Castaño, J. M. Martin, R. D. Massarczyk, R. Meijer, S. J. Oli, T. K. Paudel, L. S. Pettus, W. Poon, A. W. P. Radford, D. C. Reine, A. L. Rielage, K. Ruof, N. W. Schaper, D. C. Schleich, S. J. Tedeschi, D. Varner, R. L. Vasilyev, S. Watkins, S. L. Wilkerson, J. F. Wiseman, C. Xu, W. Yu, C. -H.
contents	The background index is an important quantity which is used in projecting and calculating the half-life sensitivity of neutrinoless double-beta decay ($0νββ$) experiments. A novel analysis framework is presented to calculate the background index using the specific activities, masses and simulated efficiencies of an experiment's components as distributions. This Bayesian framework includes a unified approach to combine specific activities from assay. Monte Carlo uncertainty propagation is used to build a background index distribution from the specific activity, mass and efficiency distributions. This analysis method is applied to the MAJORANA DEMONSTRATOR, which deployed arrays of high-purity Ge detectors enriched in $^{76}$Ge to search for $0νββ$. The framework projects a mean background index of $\left[8.95 \pm 0.36\right] \times 10^{-4}$cts/(keV kg yr) from $^{232}$Th and $^{238}$U in the DEMONSTRATOR's components.
format	Preprint
id	arxiv_https___arxiv_org_abs_2408_06786
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	An assay-based background projection for the MAJORANA DEMONSTRATOR using Monte Carlo Uncertainty Propagation Arnquist, I. J. Avignone III, F. T. Barabash, A. S. Barton, C. J. Bhimani, K. H. Blalock, E. Bos, B. Busch, M. Caldwell, T. S. Chan, Y. -D. Christofferson, C. D. Chu, P. -H. Clark, M. L. Cuesta, C. Detwiler, J. A. Efremenko, Yu. Ejiri, H. Elliott, S. R. Fuad, N. Giovanetti, G. K. Green, M. P. Gruszko, J. Guinn, I. S. Guiseppe, V. E. Haufe, C. R. Henning, R. Aguilar, D. Hervas Hoppe, E. W. Hostiuc, A. Kidd, M. F. Kim, I. Kouzes, R. T. Lannen V, T. E. Li, A. López-Castaño, J. M. Martin, R. D. Massarczyk, R. Meijer, S. J. Oli, T. K. Paudel, L. S. Pettus, W. Poon, A. W. P. Radford, D. C. Reine, A. L. Rielage, K. Ruof, N. W. Schaper, D. C. Schleich, S. J. Tedeschi, D. Varner, R. L. Vasilyev, S. Watkins, S. L. Wilkerson, J. F. Wiseman, C. Xu, W. Yu, C. -H. Nuclear Experiment Instrumentation and Detectors The background index is an important quantity which is used in projecting and calculating the half-life sensitivity of neutrinoless double-beta decay ($0νββ$) experiments. A novel analysis framework is presented to calculate the background index using the specific activities, masses and simulated efficiencies of an experiment's components as distributions. This Bayesian framework includes a unified approach to combine specific activities from assay. Monte Carlo uncertainty propagation is used to build a background index distribution from the specific activity, mass and efficiency distributions. This analysis method is applied to the MAJORANA DEMONSTRATOR, which deployed arrays of high-purity Ge detectors enriched in $^{76}$Ge to search for $0νββ$. The framework projects a mean background index of $\left[8.95 \pm 0.36\right] \times 10^{-4}$cts/(keV kg yr) from $^{232}$Th and $^{238}$U in the DEMONSTRATOR's components.
title	An assay-based background projection for the MAJORANA DEMONSTRATOR using Monte Carlo Uncertainty Propagation
topic	Nuclear Experiment Instrumentation and Detectors
url	https://arxiv.org/abs/2408.06786