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Ultracold neutron energy spectrum and storage properties from magnetically induced spin depolarization

Fuente: arXiv

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Main Authors:	Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Bowles, D., Caratsch, G. L., Chanel, E., Chen, W., Chiu, P. -J., Crawford, C. B., Czamler, V., Daum, M., Doorenbos, C. B., Ferry, M., Fertl, M., Fratangelo, A., Galbinski, D., Griffith, W. C., Grujic, Z. D., Kirch, K., Kletzl, V., Lauss, B., Lefort, T., Lejuez, A., Li, R., Michielsen, K., Micko, J., Mullan, P., Mullins, A., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Pistillo, C., Rebreyend, D., Rienäcker, I., Ries, D., Roccia, S., Rozpedzik, D., Saenz-Arevalo, W., Zielniewicz, L. Sanchez-Real, Schmidt-Wellenburg, P., Segarra, E. P., Segner, L., Severijns, N., Svirina, K., Tanaka, K. S., Thorne, J., Vankeirsbilck, J., von Schickh, N., Yazdandoost, N., Zejma, J., Ziehl, N., Zsigmond, G.
Format:	Preprint
Published:	2025
Subjects:	High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment
Online Access:	Acceder al recurso
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_version_	1866909895833419776
author	Ayres, N. J. Ban, G. Bison, G. Bodek, K. Bondar, V. Bouillaud, T. Bowles, D. Caratsch, G. L. Chanel, E. Chen, W. Chiu, P. -J. Crawford, C. B. Czamler, V. Daum, M. Doorenbos, C. B. Ferry, M. Fertl, M. Fratangelo, A. Galbinski, D. Griffith, W. C. Grujic, Z. D. Kirch, K. Kletzl, V. Lauss, B. Lefort, T. Lejuez, A. Li, R. Michielsen, K. Micko, J. Mullan, P. Mullins, A. Naviliat-Cuncic, O. Pais, D. Piegsa, F. M. Pignol, G. Pistillo, C. Rebreyend, D. Rienäcker, I. Ries, D. Roccia, S. Rozpedzik, D. Saenz-Arevalo, W. Zielniewicz, L. Sanchez-Real Schmidt-Wellenburg, P. Segarra, E. P. Segner, L. Severijns, N. Svirina, K. Tanaka, K. S. Thorne, J. Vankeirsbilck, J. von Schickh, N. Yazdandoost, N. Zejma, J. Ziehl, N. Zsigmond, G.
author_facet	Ayres, N. J. Ban, G. Bison, G. Bodek, K. Bondar, V. Bouillaud, T. Bowles, D. Caratsch, G. L. Chanel, E. Chen, W. Chiu, P. -J. Crawford, C. B. Czamler, V. Daum, M. Doorenbos, C. B. Ferry, M. Fertl, M. Fratangelo, A. Galbinski, D. Griffith, W. C. Grujic, Z. D. Kirch, K. Kletzl, V. Lauss, B. Lefort, T. Lejuez, A. Li, R. Michielsen, K. Micko, J. Mullan, P. Mullins, A. Naviliat-Cuncic, O. Pais, D. Piegsa, F. M. Pignol, G. Pistillo, C. Rebreyend, D. Rienäcker, I. Ries, D. Roccia, S. Rozpedzik, D. Saenz-Arevalo, W. Zielniewicz, L. Sanchez-Real Schmidt-Wellenburg, P. Segarra, E. P. Segner, L. Severijns, N. Svirina, K. Tanaka, K. S. Thorne, J. Vankeirsbilck, J. von Schickh, N. Yazdandoost, N. Zejma, J. Ziehl, N. Zsigmond, G.
contents	We present a novel method for extracting the energy spectrum of ultracold neutrons from magnetically induced spin depolarization measurements using the n2EDM apparatus. This method is also sensitive to the storage properties of the materials used to trap ultracold neutrons, specifically, whether collisions are specular or diffuse. We highlight the sensitivity of this new technique by comparing the two different storage chambers of the n2EDM experiment. We validate the extraction by comparing to an independent measurement for how this energy spectrum is polarized through a magnetic-filter, and finally, we calculate the neutron center-of-mass offset, an important systematic effect for measurements of the neutron electric dipole moment.
format	Preprint
id	arxiv_https___arxiv_org_abs_2511_06884
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Ultracold neutron energy spectrum and storage properties from magnetically induced spin depolarization Ayres, N. J. Ban, G. Bison, G. Bodek, K. Bondar, V. Bouillaud, T. Bowles, D. Caratsch, G. L. Chanel, E. Chen, W. Chiu, P. -J. Crawford, C. B. Czamler, V. Daum, M. Doorenbos, C. B. Ferry, M. Fertl, M. Fratangelo, A. Galbinski, D. Griffith, W. C. Grujic, Z. D. Kirch, K. Kletzl, V. Lauss, B. Lefort, T. Lejuez, A. Li, R. Michielsen, K. Micko, J. Mullan, P. Mullins, A. Naviliat-Cuncic, O. Pais, D. Piegsa, F. M. Pignol, G. Pistillo, C. Rebreyend, D. Rienäcker, I. Ries, D. Roccia, S. Rozpedzik, D. Saenz-Arevalo, W. Zielniewicz, L. Sanchez-Real Schmidt-Wellenburg, P. Segarra, E. P. Segner, L. Severijns, N. Svirina, K. Tanaka, K. S. Thorne, J. Vankeirsbilck, J. von Schickh, N. Yazdandoost, N. Zejma, J. Ziehl, N. Zsigmond, G. High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment We present a novel method for extracting the energy spectrum of ultracold neutrons from magnetically induced spin depolarization measurements using the n2EDM apparatus. This method is also sensitive to the storage properties of the materials used to trap ultracold neutrons, specifically, whether collisions are specular or diffuse. We highlight the sensitivity of this new technique by comparing the two different storage chambers of the n2EDM experiment. We validate the extraction by comparing to an independent measurement for how this energy spectrum is polarized through a magnetic-filter, and finally, we calculate the neutron center-of-mass offset, an important systematic effect for measurements of the neutron electric dipole moment.
title	Ultracold neutron energy spectrum and storage properties from magnetically induced spin depolarization
topic	High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment
url	https://arxiv.org/abs/2511.06884