Improved axion haloscope search analysis

Journal of High Energy Physics

B. R. Ko¹  J. Choi¹  S. Lee¹  Y. K. Semertzidis²  S. Ahn² 

[1] Center for Axion and Precision Physics Research (CAPP), Institute for Basic Science (IBS), 34051, Daejeon, Republic of Korea;Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), 34141, Daejeon, Republic of Korea;Center for Axion and Precision Physics Research (CAPP), Institute for Basic Science (IBS), 34051, Daejeon, Republic of Korea;

关键词: Beyond Standard Model;    Dark matter;    Dark Matter and Double Beta Decay (experiments);   

DOI  :  10.1007/JHEP04(2021)297

来源: Springer

【 摘 要 】

One of the most significant and practical figures of merit in axion haloscope searches is the scanning rate, because of the unknown axion mass. Under the best experimental parameters, the only way to improve the figure of merit is to increase the experimentally designed signal to noise ratio in the axion haloscope search analysis procedure. In this paper, we report an improved axion haloscope search analysis using the data taken by the CAPP-8TB haloscope. By correcting for the background biased by the background parametrizations in the presence of axion signals, we realized a signal to noise ratio efficiency of about 100%. Given the axion haloscope search analyses to date, the scanning rate can be improved by 21%, with about a 10% improvement in the signal to noise ratio. This improvement is another low cost innovation in axion haloscope searches, where all the experimental parameters are currently at their best.

【 授权许可】

CC BY