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High-Precision Excited-State Nuclear Recoil Spectroscopy with Superconducting Sensors

Fuente: arXiv

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Bibliographic Details
Main Authors:	Bray, C., Fretwell, S., Zepeda-Ruiz, L. A., Kim, I., Samanta, A., Wang, K., Stone-Whitehead, C., Warburton, W. K., Ponce, F., Leach, K. G., Abells, R., Amaro, P., Andoche, A., Cantor, R., Diercks, D., Guerra, M., Hall, A., Harris, C., Harris, J., Hayen, L., Hervieux, P. A., Kim, G. B., Lennarz, A., Lordi, V., Machado, J., Machule, P., Marino, A., McKeen, D., Mougeot, X., Ruiz, C., Smolsky, J. P. Santos J., Waters, B. D., Friedrich, S.
Format:	Preprint
Published:	2024
Subjects:	Instrumentation and Detectors Nuclear Experiment
Online Access:	Acceder al recurso
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_version_	1866912151567859712
author	Bray, C. Fretwell, S. Zepeda-Ruiz, L. A. Kim, I. Samanta, A. Wang, K. Stone-Whitehead, C. Warburton, W. K. Ponce, F. Leach, K. G. Abells, R. Amaro, P. Andoche, A. Cantor, R. Diercks, D. Guerra, M. Hall, A. Harris, C. Harris, J. Hayen, L. Hervieux, P. A. Kim, G. B. Lennarz, A. Lordi, V. Machado, J. Machule, P. Marino, A. McKeen, D. Mougeot, X. Ruiz, C. Smolsky, J. P. Santos J. Waters, B. D. Friedrich, S.
author_facet	Bray, C. Fretwell, S. Zepeda-Ruiz, L. A. Kim, I. Samanta, A. Wang, K. Stone-Whitehead, C. Warburton, W. K. Ponce, F. Leach, K. G. Abells, R. Amaro, P. Andoche, A. Cantor, R. Diercks, D. Guerra, M. Hall, A. Harris, C. Harris, J. Hayen, L. Hervieux, P. A. Kim, G. B. Lennarz, A. Lordi, V. Machado, J. Machule, P. Marino, A. McKeen, D. Mougeot, X. Ruiz, C. Smolsky, J. P. Santos J. Waters, B. D. Friedrich, S.
contents	Superconducting sensors doped with rare isotopes have recently demonstrated powerful sensing performance for sub-keV radiation from nuclear decay. Here, we report the first high-resolution recoil spectroscopy of a single, selected nuclear state using superconducting tunnel junction (STJ) sensors. The STJ sensors were used to measure the eV-scale nuclear recoils produced in $^7$Be electron capture decay in coincidence with a 478 keV $γ$-ray emitted in decays to the lowest-lying excited nuclear state in $^7$Li. Details of the Doppler broadened recoil spectrum depend on the slow-down dynamics of the recoil ion. The measured spectral broadening is compared to empirical stopping power models as well as modern molecular dynamics simulations at low energy. The results have implications in several areas from nuclear structure and stopping powers at eV-scale energies to direct searches for dark matter, neutrino mass measurements, and other physics beyond the standard model.
format	Preprint
id	arxiv_https___arxiv_org_abs_2411_08076
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	High-Precision Excited-State Nuclear Recoil Spectroscopy with Superconducting Sensors Bray, C. Fretwell, S. Zepeda-Ruiz, L. A. Kim, I. Samanta, A. Wang, K. Stone-Whitehead, C. Warburton, W. K. Ponce, F. Leach, K. G. Abells, R. Amaro, P. Andoche, A. Cantor, R. Diercks, D. Guerra, M. Hall, A. Harris, C. Harris, J. Hayen, L. Hervieux, P. A. Kim, G. B. Lennarz, A. Lordi, V. Machado, J. Machule, P. Marino, A. McKeen, D. Mougeot, X. Ruiz, C. Smolsky, J. P. Santos J. Waters, B. D. Friedrich, S. Instrumentation and Detectors Nuclear Experiment Superconducting sensors doped with rare isotopes have recently demonstrated powerful sensing performance for sub-keV radiation from nuclear decay. Here, we report the first high-resolution recoil spectroscopy of a single, selected nuclear state using superconducting tunnel junction (STJ) sensors. The STJ sensors were used to measure the eV-scale nuclear recoils produced in $^7$Be electron capture decay in coincidence with a 478 keV $γ$-ray emitted in decays to the lowest-lying excited nuclear state in $^7$Li. Details of the Doppler broadened recoil spectrum depend on the slow-down dynamics of the recoil ion. The measured spectral broadening is compared to empirical stopping power models as well as modern molecular dynamics simulations at low energy. The results have implications in several areas from nuclear structure and stopping powers at eV-scale energies to direct searches for dark matter, neutrino mass measurements, and other physics beyond the standard model.
title	High-Precision Excited-State Nuclear Recoil Spectroscopy with Superconducting Sensors
topic	Instrumentation and Detectors Nuclear Experiment
url	https://arxiv.org/abs/2411.08076