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Study of $\boldsymbolβ$ Decay Shape Factors in First-Forbidden Transitions with $\boldsymbol{ΔI^π= 0^-}$ for Reactor Antineutrino Spectra Predictions

Fuente: arXiv

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Detalles Bibliográficos
Autores principales:	Alcalá, G. A., Algora, A., Estienne, M., Fallot, M., Guadilla, V., Beloeuvre, A., Gelletly, W., Kean, R., Porta, A., Bouvier, S., Stutzmann, J. -S., Bonnet, E., Eronen, T., Etasse, D., Agramunt, J., Tain, J. L., Cabrera, H. Garcia, Giot, L., Laureau, A., Victoria, J. A., Molla, Y., Jaries, A., Ayoubi, L. Al, Beliuskina, O., Gins, W., Hukkanen, M., Illana, A., Kankainen, A., Kujanpää, S., Moore, I., Pohjalainen, I., Pitman, D., Raggio, A., Reponen, M., Romero, J., Ruotsalainen, J., Stryjczyk, M., Tolosa, A., Virtanen, V.
Formato:	Preprint
Publicado:	2026
Materias:	Nuclear Experiment
Acceso en línea:	Acceder al recurso
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

_version_	1866908755068715008
author	Alcalá, G. A. Algora, A. Estienne, M. Fallot, M. Guadilla, V. Beloeuvre, A. Gelletly, W. Kean, R. Porta, A. Bouvier, S. Stutzmann, J. -S. Bonnet, E. Eronen, T. Etasse, D. Agramunt, J. Tain, J. L. Cabrera, H. Garcia Giot, L. Laureau, A. Victoria, J. A. Molla, Y. Jaries, A. Ayoubi, L. Al Beliuskina, O. Gins, W. Hukkanen, M. Illana, A. Kankainen, A. Kujanpää, S. Moore, I. Pohjalainen, I. Pitman, D. Raggio, A. Reponen, M. Romero, J. Ruotsalainen, J. Stryjczyk, M. Tolosa, A. Virtanen, V.
author_facet	Alcalá, G. A. Algora, A. Estienne, M. Fallot, M. Guadilla, V. Beloeuvre, A. Gelletly, W. Kean, R. Porta, A. Bouvier, S. Stutzmann, J. -S. Bonnet, E. Eronen, T. Etasse, D. Agramunt, J. Tain, J. L. Cabrera, H. Garcia Giot, L. Laureau, A. Victoria, J. A. Molla, Y. Jaries, A. Ayoubi, L. Al Beliuskina, O. Gins, W. Hukkanen, M. Illana, A. Kankainen, A. Kujanpää, S. Moore, I. Pohjalainen, I. Pitman, D. Raggio, A. Reponen, M. Romero, J. Ruotsalainen, J. Stryjczyk, M. Tolosa, A. Virtanen, V.
contents	The electron spectra of the $β$ decays of $^{92}$Rb and $^{142}$Cs, key contributors to the reactor antineutrino spectrum, were measured at the IGISOL facility using radioactive beams of high isotopic purity. The shapes of the measured $β$ spectra were compared with various $β$ shape models, including first-forbidden correction factors for $ΔI^π= 0^-$ ground-state to ground-state transitions. Comparisons with previous experimental results are also provided. The shapes of the newly measured $β$ spectra are well reproduced employing feedings extracted from total absorption gamma spectroscopy measurements.
format	Preprint
id	arxiv_https___arxiv_org_abs_2601_05804
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	Study of $\boldsymbolβ$ Decay Shape Factors in First-Forbidden Transitions with $\boldsymbol{ΔI^π= 0^-}$ for Reactor Antineutrino Spectra Predictions Alcalá, G. A. Algora, A. Estienne, M. Fallot, M. Guadilla, V. Beloeuvre, A. Gelletly, W. Kean, R. Porta, A. Bouvier, S. Stutzmann, J. -S. Bonnet, E. Eronen, T. Etasse, D. Agramunt, J. Tain, J. L. Cabrera, H. Garcia Giot, L. Laureau, A. Victoria, J. A. Molla, Y. Jaries, A. Ayoubi, L. Al Beliuskina, O. Gins, W. Hukkanen, M. Illana, A. Kankainen, A. Kujanpää, S. Moore, I. Pohjalainen, I. Pitman, D. Raggio, A. Reponen, M. Romero, J. Ruotsalainen, J. Stryjczyk, M. Tolosa, A. Virtanen, V. Nuclear Experiment The electron spectra of the $β$ decays of $^{92}$Rb and $^{142}$Cs, key contributors to the reactor antineutrino spectrum, were measured at the IGISOL facility using radioactive beams of high isotopic purity. The shapes of the measured $β$ spectra were compared with various $β$ shape models, including first-forbidden correction factors for $ΔI^π= 0^-$ ground-state to ground-state transitions. Comparisons with previous experimental results are also provided. The shapes of the newly measured $β$ spectra are well reproduced employing feedings extracted from total absorption gamma spectroscopy measurements.
title	Study of $\boldsymbolβ$ Decay Shape Factors in First-Forbidden Transitions with $\boldsymbol{ΔI^π= 0^-}$ for Reactor Antineutrino Spectra Predictions
topic	Nuclear Experiment
url	https://arxiv.org/abs/2601.05804