Search for chameleons with CAST
Search for chameleons with CAST
复制标题
DOI：
10.1016/j.physletb.2015.07.049
复制
发表时间：
2015-10-07
影响因子：
4.4
通讯作者：
Upadhye, A.
中科院分区：
文献类型：
--
作者：
Anastassopoulos, V.;Arik, M.;Upadhye, A.
在这项工作中，我们介绍了用欧洲核子研究中心的轴子太阳望远镜(CAST)寻找(太阳)变色龙的方法。在暗能量研究领域，这项新的实验技术通过Primakoff效应利用变色龙与物质(β(M))和光子(β(Gamma))的耦合。通过将用于轴子的X射线探测能量阈值从1keV降低到400 eV，CAST对转换后的太阳变色龙光谱变得敏感，峰值约为600 eV。即使我们没有观察到任何高于本底的过剩，我们也可以为变色龙对1<；beta(M)和lt；10(6)的小于或类似于10(11)的光子的耦合强度提供95%的C.L.限制。(C)2015年提交人。由Elsevier B.V.出版。这是一篇在CC许可下的开放获取文章
In this work we present a search for (solar) chameleons with the CERN Axion Solar Telescope (CAST). This novel experimental technique, in the field of dark energy research, exploits both the chameleon coupling to matter (beta(m)) and to photons (beta(gamma)) via the Primakoff effect. By reducing the X-ray detection energy threshold used for axions from 1 keV to 400 eV CAST became sensitive to the converted solar chameleon spectrum which peaks around 600 eV. Even though we have not observed any excess above background, we can provide a 95% C.L. limit for the coupling strength of chameleons to photons of beta(gamma) less than or similar to 10(11) for 1 < beta(m) < 10(6). (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license