New Upper Limit on the Axion-Photon Coupling with an Extended CAST Run with a Xe-Based Micromegas Detector

CAST Collaboration

doi:10.1103/PhysRevLett.133.221005

New Upper Limit on the Axion-Photon Coupling with an Extended CAST Run with a Xe-Based Micromegas Detector

CAST Collaboration

School of Physics

Physics Department
University of Patras
University of Zaragoza
CERN
Université Paris-Saclay
University of Freiburg
Max Planck Institute for Extraterrestrial Physics
National Institute for Nuclear Physics
European Scientific Institute
Istinye University
Technical University of Denmark
University of Barcelona
Chem./Materials Science Directorate
University of Bonn
Friedrich Schiller University Jena
Columbia University
University of British Columbia
Ruder Boskovic Institute
University of Rijeka
University of Hamburg
Institute for Basic Science
Technical University of Cartagena
Istanbul University - Cerrahpaşa
Bogazici University
Extreme Light Infrastructure - Nuclear Physics (ELI-NP)
Korea Advanced Institute of Science and Technology
Max Planck Institute for Solar System Research

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope has been searching for solar axions via their back conversion to x-ray photons in a 9-T 10-m long magnet directed toward the Sun. We report on an extended run with the 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 configurations. No counts were detected in the 95% signal-encircling region during the new run, while 0.75 were expected. The new data improve the axion-photon coupling limit to 5.8×10-11 GeV-1 at 95% CL (for ma≲0.02 eV), the most restrictive experimental limit to date.

Original language	English
Article number	221005
Journal	Physical Review Letters
Volume	133
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.133.221005
State	Published - 29 Nov 2024

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10.1103/PhysRevLett.133.221005

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@article{47f9e42e8dea42faad10d86e194925c2,

title = "New Upper Limit on the Axion-Photon Coupling with an Extended CAST Run with a Xe-Based Micromegas Detector",

abstract = "Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope has been searching for solar axions via their back conversion to x-ray photons in a 9-T 10-m long magnet directed toward the Sun. We report on an extended run with the 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 configurations. No counts were detected in the 95\% signal-encircling region during the new run, while 0.75 were expected. The new data improve the axion-photon coupling limit to 5.8×10-11 GeV-1 at 95\% CL (for ma≲0.02 eV), the most restrictive experimental limit to date.",

author = "\{CAST Collaboration\} and K. Altenm{\"u}ller and V. Anastassopoulos and S. Arguedas-Cuendis and S. Aune and J. Baier and K. Barth and H. Br{\"a}uninger and G. Cantatore and F. Caspers and Castel, \{J. F.\} and {\c C}etin, \{S. A.\} and F. Christensen and C. Cogollos and T. Dafni and M. Davenport and Decker, \{T. A.\} and K. Desch and D. D{\'i}ez-Ib{\'a}{\~n}ez and B. D{\"o}brich and E. Ferrer-Ribas and H. Fischer and W. Funk and J. Gal{\'a}n and Garc{\'i}a, \{J. A.\} and A. Gardikiotis and I. Giomataris and J. Golm and Hailey, \{C. H.\} and Hasinoff, \{M. D.\} and Hoffmann, \{D. H.H.\} and Irastorza, \{I. G.\} and J. Jacoby and Jakobsen, \{A. C.\} and K. Jakov{\v c}i{\'c} and J. Kaminski and M. Karuza and S. Kostoglou and C. Krieger and B. Laki{\'c} and Laurent, \{J. M.\} and G. Luz{\'o}n and C. Malbrunot and C. Margalejo and M. Maroudas and L. Miceli and H. Mirallas and P. Navarro and L. Obis and A. {\"O}zbey and K. {\"O}zbozduman",

note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society.",

year = "2024",

month = nov,

day = "29",

doi = "10.1103/PhysRevLett.133.221005",

language = "英语",

volume = "133",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - New Upper Limit on the Axion-Photon Coupling with an Extended CAST Run with a Xe-Based Micromegas Detector

AU - CAST Collaboration

AU - Altenmüller, K.

AU - Anastassopoulos, V.

AU - Arguedas-Cuendis, S.

AU - Aune, S.

AU - Baier, J.

AU - Barth, K.

AU - Bräuninger, H.

AU - Cantatore, G.

AU - Caspers, F.

AU - Castel, J. F.

AU - Çetin, S. A.

AU - Christensen, F.

AU - Cogollos, C.

AU - Dafni, T.

AU - Davenport, M.

AU - Decker, T. A.

AU - Desch, K.

AU - Díez-Ibáñez, D.

AU - Döbrich, B.

AU - Ferrer-Ribas, E.

AU - Fischer, H.

AU - Funk, W.

AU - Galán, J.

AU - García, J. A.

AU - Gardikiotis, A.

AU - Giomataris, I.

AU - Golm, J.

AU - Hailey, C. H.

AU - Hasinoff, M. D.

AU - Hoffmann, D. H.H.

AU - Irastorza, I. G.

AU - Jacoby, J.

AU - Jakobsen, A. C.

AU - Jakovčić, K.

AU - Kaminski, J.

AU - Karuza, M.

AU - Kostoglou, S.

AU - Krieger, C.

AU - Lakić, B.

AU - Laurent, J. M.

AU - Luzón, G.

AU - Malbrunot, C.

AU - Margalejo, C.

AU - Maroudas, M.

AU - Miceli, L.

AU - Mirallas, H.

AU - Navarro, P.

AU - Obis, L.

AU - Özbey, A.

AU - Özbozduman, K.

PY - 2024/11/29

Y1 - 2024/11/29

N2 - Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope has been searching for solar axions via their back conversion to x-ray photons in a 9-T 10-m long magnet directed toward the Sun. We report on an extended run with the 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 configurations. No counts were detected in the 95% signal-encircling region during the new run, while 0.75 were expected. The new data improve the axion-photon coupling limit to 5.8×10-11 GeV-1 at 95% CL (for ma≲0.02 eV), the most restrictive experimental limit to date.

AB - Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope has been searching for solar axions via their back conversion to x-ray photons in a 9-T 10-m long magnet directed toward the Sun. We report on an extended run with the 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 configurations. No counts were detected in the 95% signal-encircling region during the new run, while 0.75 were expected. The new data improve the axion-photon coupling limit to 5.8×10-11 GeV-1 at 95% CL (for ma≲0.02 eV), the most restrictive experimental limit to date.

UR - https://www.scopus.com/pages/publications/85210320125

U2 - 10.1103/PhysRevLett.133.221005

DO - 10.1103/PhysRevLett.133.221005

M3 - 文章

C2 - 39672143

AN - SCOPUS:85210320125

SN - 0031-9007

VL - 133

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

M1 - 221005

ER -

New Upper Limit on the Axion-Photon Coupling with an Extended CAST Run with a Xe-Based Micromegas Detector

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