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First results of the NEXT-100 detector using $^{83m}$Kr decays

Fuente: arXiv

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Main Authors:	NEXT Collaboration, Martínez-Lema, G., Carrete, C. Hervés, Torelli, S., Laso, M. Cid, Cabaleiro, P. Vázquez, Palmeiro, B., Morata, J. A. Hernando, Gómez-Cadenas, J. J., Adams, C., Almazán, H., Álvarez, V., Aranburu, A. I., Arazi, L., Arnquist, I. J., Auria-Luna, F., Ayet, S., Ayyad, Y., Azevedo, C. D. R., Bailey, K., Ballester, F., Barcelon, J. E., del Barrio-Torregrosa, M., Bayo, A., Benlloch-Rodríguez, J. M., Borges, F. I. G. M., Brodoline, A., Byrnes, N., Castillo, A., Church, E., Cid, L., Cid, X., Conde, C. A. N., Cortes-Parra, C., Cossío, F. P., Coupe, R., Dey, E., Dietz, P., Echeverria, C., Elorza, M., Esteve, R., Felkai, R., Fernandes, L. M. P., Ferrario, P., Foss, F. W., Freixa, Z., García-Barrena, J., Grocott, J. W. R., Guenette, R., Hauptman, J., Henriques, C. A. O., Herrero-Gómez, P., Herrero, V., Ifergan, Y., Isabel, A. F. B., Jones, B. J. P., Kellerer, F., Larizgoitia, L., Larumbe, A., Lebrun, P., Lopez, F., López-March, N., Madigan, R., Mano, R. D. P., Marauri, A., Marques, A. P., Martín-Albo, J., Martínez, A., Martínez-Vara, M., Miller, R. L., Mistry, K., Molina-Canteras, J., Monrabal, F., Monteiro, C. M. B., Mora, F. J., Navarro, K. E., Novella, P., Nygren, D. R., Oblak, E., Palacio, J., Para, A., Parmaksiz, I., Pazos, A., Pelegrin, J., Maneiro, M. Pérez, Querol, M., Renner, J., Rivilla, I., Rogero, C., Rogers, L., Romeo, B., Romo-Luque, C., Ruiz-Chóliz, E., Saharia, P., Santos, F. P., Santos, J. M. F. dos, Seemann, M., Shomroni, I., Silva, A. L. M., Silva, P. A. O. C., Simón, A., Soleti, S. R., Sorel, M., Soto-Oton, J., Teixeira, J. M. R., Teruel-Pardo, S., Toledo, J. F., Tonnelé, C., Torrent, J., Trettin, A., Valle, P. R. G., Vanga, M., Veloso, J. F. C. A., Villamil, J. D., Waiton, J., Yubero-Navarro, A.
Format:	Preprint
Published:	2025
Subjects:	High Energy Physics - Experiment Instrumentation and Detectors
Online Access:	Acceder al recurso
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author	NEXT Collaboration Martínez-Lema, G. Carrete, C. Hervés Torelli, S. Laso, M. Cid Cabaleiro, P. Vázquez Palmeiro, B. Morata, J. A. Hernando Gómez-Cadenas, J. J. Adams, C. Almazán, H. Álvarez, V. Aranburu, A. I. Arazi, L. Arnquist, I. J. Auria-Luna, F. Ayet, S. Ayyad, Y. Azevedo, C. D. R. Bailey, K. Ballester, F. Barcelon, J. E. del Barrio-Torregrosa, M. Bayo, A. Benlloch-Rodríguez, J. M. Borges, F. I. G. M. Brodoline, A. Byrnes, N. Castillo, A. Church, E. Cid, L. Cid, X. Conde, C. A. N. Cortes-Parra, C. Cossío, F. P. Coupe, R. Dey, E. Dietz, P. Echeverria, C. Elorza, M. Esteve, R. Felkai, R. Fernandes, L. M. P. Ferrario, P. Foss, F. W. Freixa, Z. García-Barrena, J. Grocott, J. W. R. Guenette, R. Hauptman, J. Henriques, C. A. O. Herrero-Gómez, P. Herrero, V. Ifergan, Y. Isabel, A. F. B. Jones, B. J. P. Kellerer, F. Larizgoitia, L. Larumbe, A. Lebrun, P. Lopez, F. López-March, N. Madigan, R. Mano, R. D. P. Marauri, A. Marques, A. P. Martín-Albo, J. Martínez, A. Martínez-Vara, M. Miller, R. L. Mistry, K. Molina-Canteras, J. Monrabal, F. Monteiro, C. M. B. Mora, F. J. Navarro, K. E. Novella, P. Nygren, D. R. Oblak, E. Palacio, J. Para, A. Parmaksiz, I. Pazos, A. Pelegrin, J. Maneiro, M. Pérez Querol, M. Renner, J. Rivilla, I. Rogero, C. Rogers, L. Romeo, B. Romo-Luque, C. Ruiz-Chóliz, E. Saharia, P. Santos, F. P. Santos, J. M. F. dos Seemann, M. Shomroni, I. Silva, A. L. M. Silva, P. A. O. C. Simón, A. Soleti, S. R. Sorel, M. Soto-Oton, J. Teixeira, J. M. R. Teruel-Pardo, S. Toledo, J. F. Tonnelé, C. Torrent, J. Trettin, A. Valle, P. R. G. Vanga, M. Veloso, J. F. C. A. Villamil, J. D. Waiton, J. Yubero-Navarro, A.
author_facet	NEXT Collaboration Martínez-Lema, G. Carrete, C. Hervés Torelli, S. Laso, M. Cid Cabaleiro, P. Vázquez Palmeiro, B. Morata, J. A. Hernando Gómez-Cadenas, J. J. Adams, C. Almazán, H. Álvarez, V. Aranburu, A. I. Arazi, L. Arnquist, I. J. Auria-Luna, F. Ayet, S. Ayyad, Y. Azevedo, C. D. R. Bailey, K. Ballester, F. Barcelon, J. E. del Barrio-Torregrosa, M. Bayo, A. Benlloch-Rodríguez, J. M. Borges, F. I. G. M. Brodoline, A. Byrnes, N. Castillo, A. Church, E. Cid, L. Cid, X. Conde, C. A. N. Cortes-Parra, C. Cossío, F. P. Coupe, R. Dey, E. Dietz, P. Echeverria, C. Elorza, M. Esteve, R. Felkai, R. Fernandes, L. M. P. Ferrario, P. Foss, F. W. Freixa, Z. García-Barrena, J. Grocott, J. W. R. Guenette, R. Hauptman, J. Henriques, C. A. O. Herrero-Gómez, P. Herrero, V. Ifergan, Y. Isabel, A. F. B. Jones, B. J. P. Kellerer, F. Larizgoitia, L. Larumbe, A. Lebrun, P. Lopez, F. López-March, N. Madigan, R. Mano, R. D. P. Marauri, A. Marques, A. P. Martín-Albo, J. Martínez, A. Martínez-Vara, M. Miller, R. L. Mistry, K. Molina-Canteras, J. Monrabal, F. Monteiro, C. M. B. Mora, F. J. Navarro, K. E. Novella, P. Nygren, D. R. Oblak, E. Palacio, J. Para, A. Parmaksiz, I. Pazos, A. Pelegrin, J. Maneiro, M. Pérez Querol, M. Renner, J. Rivilla, I. Rogero, C. Rogers, L. Romeo, B. Romo-Luque, C. Ruiz-Chóliz, E. Saharia, P. Santos, F. P. Santos, J. M. F. dos Seemann, M. Shomroni, I. Silva, A. L. M. Silva, P. A. O. C. Simón, A. Soleti, S. R. Sorel, M. Soto-Oton, J. Teixeira, J. M. R. Teruel-Pardo, S. Toledo, J. F. Tonnelé, C. Torrent, J. Trettin, A. Valle, P. R. G. Vanga, M. Veloso, J. F. C. A. Villamil, J. D. Waiton, J. Yubero-Navarro, A.
contents	The NEXT collaboration is investigating the double beta decay of $^{136}$Xe using high-pressure gas electroluminescent time projection chambers, which provide excellent energy resolution together with a robust topological signature. Operating at the Laboratorio Subterráneo de Canfranc (LSC) and building on the success of the NEXT-White detector, the NEXT-100 apparatus began commissioning in May 2024 and started operation with xenon at a pressure of 4 bar in October 2024. We report here the first results obtained with NEXT-100 using low-energy calibration data from $^{83m}$Kr decays, which allow mapping of the detector response in the active volume and monitoring of its stability over time. After homogenizing the light response, we achieve an energy resolution of 4.37% FWHM at 41.5 keV for $^{83m}$Kr point-like energy deposits contained in a radius of 425 mm. In a fiducial region representing the operating conditions of NEXT-100 at 10 bar we obtain an improved energy resolution of 4.16% FWHM. These results are in good agreement with that obtained in NEXT-White, and an $E^{-1/2}$ extrapolation to $Q_{ββ}$ yields an energy resolution close to 0.5% FWHM, well below the 1% FWHM design target.
format	Preprint
id	arxiv_https___arxiv_org_abs_2511_01710
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	First results of the NEXT-100 detector using $^{83m}$Kr decays NEXT Collaboration Martínez-Lema, G. Carrete, C. Hervés Torelli, S. Laso, M. Cid Cabaleiro, P. Vázquez Palmeiro, B. Morata, J. A. Hernando Gómez-Cadenas, J. J. Adams, C. Almazán, H. Álvarez, V. Aranburu, A. I. Arazi, L. Arnquist, I. J. Auria-Luna, F. Ayet, S. Ayyad, Y. Azevedo, C. D. R. Bailey, K. Ballester, F. Barcelon, J. E. del Barrio-Torregrosa, M. Bayo, A. Benlloch-Rodríguez, J. M. Borges, F. I. G. M. Brodoline, A. Byrnes, N. Castillo, A. Church, E. Cid, L. Cid, X. Conde, C. A. N. Cortes-Parra, C. Cossío, F. P. Coupe, R. Dey, E. Dietz, P. Echeverria, C. Elorza, M. Esteve, R. Felkai, R. Fernandes, L. M. P. Ferrario, P. Foss, F. W. Freixa, Z. García-Barrena, J. Grocott, J. W. R. Guenette, R. Hauptman, J. Henriques, C. A. O. Herrero-Gómez, P. Herrero, V. Ifergan, Y. Isabel, A. F. B. Jones, B. J. P. Kellerer, F. Larizgoitia, L. Larumbe, A. Lebrun, P. Lopez, F. López-March, N. Madigan, R. Mano, R. D. P. Marauri, A. Marques, A. P. Martín-Albo, J. Martínez, A. Martínez-Vara, M. Miller, R. L. Mistry, K. Molina-Canteras, J. Monrabal, F. Monteiro, C. M. B. Mora, F. J. Navarro, K. E. Novella, P. Nygren, D. R. Oblak, E. Palacio, J. Para, A. Parmaksiz, I. Pazos, A. Pelegrin, J. Maneiro, M. Pérez Querol, M. Renner, J. Rivilla, I. Rogero, C. Rogers, L. Romeo, B. Romo-Luque, C. Ruiz-Chóliz, E. Saharia, P. Santos, F. P. Santos, J. M. F. dos Seemann, M. Shomroni, I. Silva, A. L. M. Silva, P. A. O. C. Simón, A. Soleti, S. R. Sorel, M. Soto-Oton, J. Teixeira, J. M. R. Teruel-Pardo, S. Toledo, J. F. Tonnelé, C. Torrent, J. Trettin, A. Valle, P. R. G. Vanga, M. Veloso, J. F. C. A. Villamil, J. D. Waiton, J. Yubero-Navarro, A. High Energy Physics - Experiment Instrumentation and Detectors The NEXT collaboration is investigating the double beta decay of $^{136}$Xe using high-pressure gas electroluminescent time projection chambers, which provide excellent energy resolution together with a robust topological signature. Operating at the Laboratorio Subterráneo de Canfranc (LSC) and building on the success of the NEXT-White detector, the NEXT-100 apparatus began commissioning in May 2024 and started operation with xenon at a pressure of 4 bar in October 2024. We report here the first results obtained with NEXT-100 using low-energy calibration data from $^{83m}$Kr decays, which allow mapping of the detector response in the active volume and monitoring of its stability over time. After homogenizing the light response, we achieve an energy resolution of 4.37% FWHM at 41.5 keV for $^{83m}$Kr point-like energy deposits contained in a radius of 425 mm. In a fiducial region representing the operating conditions of NEXT-100 at 10 bar we obtain an improved energy resolution of 4.16% FWHM. These results are in good agreement with that obtained in NEXT-White, and an $E^{-1/2}$ extrapolation to $Q_{ββ}$ yields an energy resolution close to 0.5% FWHM, well below the 1% FWHM design target.
title	First results of the NEXT-100 detector using $^{83m}$Kr decays
topic	High Energy Physics - Experiment Instrumentation and Detectors
url	https://arxiv.org/abs/2511.01710