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A new upper limit on the axion-photon coupling with an extended CAST run with a Xe-based Micromegas detector

Fuente: arXiv

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Main Authors:	CAST Collaboration, Altenmüller, K., Anastassopoulos, V., Arguedas-Cuendis, S., Aune, S., Baier, J., Barth, K., Bräuninger, H., Cantatore, G., Caspers, F., Castel, J. F., Çetin, S. A., Christensen, F., Cogollos, C., Dafni, T., Davenport, M., Decker, T. A., Desch, K., Díez-Ibáñez, D., Döbrich, B., Ferrer-Ribas, E., Fischer, H., Funk, W., Galán, J., García, J. A., Gardikiotis, A., Giomataris, I., Golm, J., Hailey, C. H., Hasinoff, M. D., Hoffmann, D. H. H., Irastorza, I. G., Jacoby, J., Jakobsen, A. C., Jakovčić, K., Kaminski, J., Karuza, M., Kostoglou, S., Krieger, C., Lakić, B., Laurent, J. M., Luzón, G., Malbrunot, C., Margalejo, C., Maroudas, M., Miceli, L., Mirallas, H., Navarro, P., Obis, L., Özbey, A., Özbozduman, K., Papaevangelou, T., Pérez, O., Pivovaroff, M. J., Rosu, M., Ruiz-Chóliz, E., Ruz, J., Schmidt, S., Schumann, M., Semertzidis, Y. K., Solanki, S. K., Stewart, L., Vafeiadis, T., Vogel, J. K., Zioutas, K.
Format:	Preprint
Published:	2024
Subjects:	High Energy Physics - Experiment
Online Access:	Acceder al recurso
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_version_	1866916506691960832
author	CAST Collaboration Altenmüller, K. Anastassopoulos, V. Arguedas-Cuendis, S. Aune, S. Baier, J. Barth, K. Bräuninger, H. Cantatore, G. Caspers, F. Castel, J. F. Çetin, S. A. Christensen, F. Cogollos, C. Dafni, T. Davenport, M. Decker, T. A. Desch, K. Díez-Ibáñez, D. Döbrich, B. Ferrer-Ribas, E. Fischer, H. Funk, W. Galán, J. García, J. A. Gardikiotis, A. Giomataris, I. Golm, J. Hailey, C. H. Hasinoff, M. D. Hoffmann, D. H. H. Irastorza, I. G. Jacoby, J. Jakobsen, A. C. Jakovčić, K. Kaminski, J. Karuza, M. Kostoglou, S. Krieger, C. Lakić, B. Laurent, J. M. Luzón, G. Malbrunot, C. Margalejo, C. Maroudas, M. Miceli, L. Mirallas, H. Navarro, P. Obis, L. Özbey, A. Özbozduman, K. Papaevangelou, T. Pérez, O. Pivovaroff, M. J. Rosu, M. Ruiz-Chóliz, E. Ruz, J. Schmidt, S. Schumann, M. Semertzidis, Y. K. Solanki, S. K. Stewart, L. Vafeiadis, T. Vogel, J. K. Zioutas, K.
author_facet	CAST Collaboration Altenmüller, K. Anastassopoulos, V. Arguedas-Cuendis, S. Aune, S. Baier, J. Barth, K. Bräuninger, H. Cantatore, G. Caspers, F. Castel, J. F. Çetin, S. A. Christensen, F. Cogollos, C. Dafni, T. Davenport, M. Decker, T. A. Desch, K. Díez-Ibáñez, D. Döbrich, B. Ferrer-Ribas, E. Fischer, H. Funk, W. Galán, J. García, J. A. Gardikiotis, A. Giomataris, I. Golm, J. Hailey, C. H. Hasinoff, M. D. Hoffmann, D. H. H. Irastorza, I. G. Jacoby, J. Jakobsen, A. C. Jakovčić, K. Kaminski, J. Karuza, M. Kostoglou, S. Krieger, C. Lakić, B. Laurent, J. M. Luzón, G. Malbrunot, C. Margalejo, C. Maroudas, M. Miceli, L. Mirallas, H. Navarro, P. Obis, L. Özbey, A. Özbozduman, K. Papaevangelou, T. Pérez, O. Pivovaroff, M. J. Rosu, M. Ruiz-Chóliz, E. Ruz, J. Schmidt, S. Schumann, M. Semertzidis, Y. K. Solanki, S. K. Stewart, L. Vafeiadis, T. Vogel, J. K. Zioutas, K.
contents	Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope (CAST) has been searching for solar axions via their back conversion to X-ray photons in a 9-T 10-m long magnet directed towards the Sun. We report on an extended run with the IAXO (International Axion Observatory) pathfinder detector, doubling the previous exposure time. The detector was operated with a xenon-based gas mixture for part of the new run, providing technical insights for future detector configurations in IAXO. No counts are detected in the 95% signal-encircling region during the new run, while 0.75 are expected. The new data improve the axion-photon coupling limit to 5.8$\times 10^{-11}\,$GeV$^{-1}$ at 95% C.L. (for $m_a \lesssim 0.02$ eV), the most restrictive experimental limit to date.
format	Preprint
id	arxiv_https___arxiv_org_abs_2406_16840
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	A new upper limit on the axion-photon coupling with an extended CAST run with a Xe-based Micromegas detector CAST Collaboration Altenmüller, K. Anastassopoulos, V. Arguedas-Cuendis, S. Aune, S. Baier, J. Barth, K. Bräuninger, H. Cantatore, G. Caspers, F. Castel, J. F. Çetin, S. A. Christensen, F. Cogollos, C. Dafni, T. Davenport, M. Decker, T. A. Desch, K. Díez-Ibáñez, D. Döbrich, B. Ferrer-Ribas, E. Fischer, H. Funk, W. Galán, J. García, J. A. Gardikiotis, A. Giomataris, I. Golm, J. Hailey, C. H. Hasinoff, M. D. Hoffmann, D. H. H. Irastorza, I. G. Jacoby, J. Jakobsen, A. C. Jakovčić, K. Kaminski, J. Karuza, M. Kostoglou, S. Krieger, C. Lakić, B. Laurent, J. M. Luzón, G. Malbrunot, C. Margalejo, C. Maroudas, M. Miceli, L. Mirallas, H. Navarro, P. Obis, L. Özbey, A. Özbozduman, K. Papaevangelou, T. Pérez, O. Pivovaroff, M. J. Rosu, M. Ruiz-Chóliz, E. Ruz, J. Schmidt, S. Schumann, M. Semertzidis, Y. K. Solanki, S. K. Stewart, L. Vafeiadis, T. Vogel, J. K. Zioutas, K. High Energy Physics - Experiment Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope (CAST) has been searching for solar axions via their back conversion to X-ray photons in a 9-T 10-m long magnet directed towards the Sun. We report on an extended run with the IAXO (International Axion Observatory) pathfinder detector, doubling the previous exposure time. The detector was operated with a xenon-based gas mixture for part of the new run, providing technical insights for future detector configurations in IAXO. No counts are detected in the 95% signal-encircling region during the new run, while 0.75 are expected. The new data improve the axion-photon coupling limit to 5.8$\times 10^{-11}\,$GeV$^{-1}$ at 95% C.L. (for $m_a \lesssim 0.02$ eV), the most restrictive experimental limit to date.
title	A new upper limit on the axion-photon coupling with an extended CAST run with a Xe-based Micromegas detector
topic	High Energy Physics - Experiment
url	https://arxiv.org/abs/2406.16840