基于Xe气体的CAST探测器的全新轴子-光子耦合上限
高能物理 - 实验
2024-12-05 v3
摘要
假想轴子为暗物质提供了引人注目的解释，可能来自炽热的太阳内部。猷乐团轴子太阳望远镜（CAST）通过轴子在9特斯拉、10米长的磁场中转化为X射线光子来搜索太阳轴子。我们报告了在IAXO（国际轴子观测站）前哨探测器上的一次延长运行的结果，暴露时间翻倍。该探测器在新的运行部分使用氦神气混合物运行，为IAXO未来的探测器配置提供了技术见解。新运行中，在覆盖95%信号区域内未检测到任何计数，而预期为0.75。新数据将轴子-光子耦合限制提高至95%置信水平下5.8×10⁻¹¹ GeV⁻¹（对应质量m_a≲0.02 eV），为目前最严格的实验限制。
关键词
引用
@article{arxiv.2406.16840,
title = {A new upper limit on the axion-photon coupling with an extended CAST run with a Xe-based Micromegas detector},
author = {CAST Collaboration and K. Altenmüller and V. Anastassopoulos and S. Arguedas-Cuendis and S. Aune and J. Baier and K. Barth and H. Bräuninger and G. Cantatore and F. Caspers and J. F. Castel and S. A. Çetin and F. Christensen and C. Cogollos and T. Dafni and M. Davenport and T. A. Decker and K. Desch and D. Díez-Ibáñez and B. Döbrich and E. Ferrer-Ribas and H. Fischer and W. Funk and J. Galán and J. A. García and A. Gardikiotis and I. Giomataris and J. Golm and C. H. Hailey and M. D. Hasinoff and D. H. H. Hoffmann and I. G. Irastorza and J. Jacoby and A. C. Jakobsen and K. Jakovčić and J. Kaminski and M. Karuza and S. Kostoglou and C. Krieger and B. Lakić and J. M. Laurent and G. Luzón and C. Malbrunot and C. Margalejo and M. Maroudas and L. Miceli and H. Mirallas and P. Navarro and L. Obis and A. Özbey and K. Özbozduman and T. Papaevangelou and O. Pérez and M. J. Pivovaroff and M. Rosu and E. Ruiz-Chóliz and J. Ruz and S. Schmidt and M. Schumann and Y. K. Semertzidis and S. K. Solanki and L. Stewart and T. Vafeiadis and J. K. Vogel and K. Zioutas},
journal= {arXiv preprint arXiv:2406.16840},
year = {2024}
}
备注
9 pages, 4 figures (plus 8 pages, 10 figures of supplemental material) Corresponding authors: C. Margalejo ([email protected]) and J. Ruz ([email protected])