An improved limit on the axion–photon coupling from the CAST experiment
An improved limit on the axion–photon coupling from the CAST experiment
复制标题
CAST 实验对轴子-光子耦合的改进限制
DOI：
10.1088/1475-7516/2007/04/010
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发表时间：
2007
影响因子：
6.4
通讯作者：
K. Zioutas
中科院分区：
文献类型：
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作者：
S. Andriamonje;S. Aune;D. Autiero;K. Barth;A. Belov;B. Beltrán;H. Bräuninger;J. Carmona;S. Cebrián;J. Collar;T. Dafni;M. Davenport;L. Lella;C. Eleftheriadis;J. Englhauser;G. Fanourakis;E. Ribas;H. Fischer;J. Franz;P. Friedrich;T. Geralis;I. Giomataris;S. Gninenko;H. Gómez;M. Hasinoff;F. Heinsius;Dirk Hoffmann;I. Irastorza;J. Jacoby;K. Jakovčić;D. Kang;K. Königsmann;R. Kotthaus;M. Krčmar;K. Kousouris;M. Kuster;B. Lakić;C. Lasseur;A. Liolios;A. Ljubičić;G. Lutz;G. Luzón;D. Miller;A. Morales;J. Morales;A. Ortiz;T. Papaevangelou;A. Placci;G. Raffelt;H. Riege;A. Rodriguez;J. Ruz;I. Savvidis;Y. Semertzidis;Y. Semertzidis;P. Serpico;L. Stewart;J. Vieira;J. Villar;J. Vogel;L. Walckiers;K. Zioutas;K. Zioutas
我们已经搜索了太阳轴子或类似的粒子，耦合到两个光子使用欧洲核子研究中心的轴子太阳望远镜（CAST）设置与所有探测器的改进条件。当磁铁指向太阳时，由于没有多余的x射线，我们设定了在95%CL下的轴子-光子耦合的上限为gaγ<8.8 × 10−11 GeV−1。这一结果是最好的实验限制在广泛的轴子质量，也取代了以前的限制来自能量损失的参数对球状星团的恒星。
We have searched for solar axions or similar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) set-up with improved conditions in all detectors. From the absence of excess x-rays when the magnet was pointing to the Sun, we set an upper limit on the axion–photon coupling of gaγ<8.8 × 10−11 GeV−1 at 95% CL for . This result is the best experimental limit over a broad range of axion masses and for also supersedes the previous limit derived from energy-loss arguments on globular cluster stars.