Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap*

Project supported by the Ministry of Science and Technology of China (Grant No. 2013YQ09094304).

Xiang Jing-feng1, 2, Cheng He-nan1, 2, Peng Xiang-kai1, 2, Wang Xin-wen1, 2, Ren Wei1, Ji Jing-wei1, Liu Kang-kang1, Zhao Jian-bo1, Li Lin1, Qu Qiu-zhi1, Li Tang1, Wang Bin1, Ye Mei-feng1, Zhao Xin1, Yao Yuan-yuan1, Lü De-Sheng1, †, Liu Liang1, ‡
       

(color online) Results of Gaussian fit for TOF signal of cold atoms. Red points show the peak height of the TOF signal, and the blue points show the Gaussian RMS width of the Gaussian function.