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Fig. 16 | EPJ Techniques and Instrumentation

Fig. 16

From: A detailed account of the measurements of cold collisions in a molecular synchrotron

Fig. 16

Total, integrated, ND3+Ar collision cross section versus collision energy. The meaning of the black, grey, red, and blue points is described in the main text. The vertical error bars denote standard errors, the horizontal error bars denote the collision energy distributions as depicted in Figs. 14 and 15. The grey line shows the result of scattering calculations[43], convoluted with a normal distribution with a standard deviation of 5 cm −1. The measurements are collectively fit to this calculation with a single global scaling factor that represents the density of the argon beam at T=−150 °C, which is found to be 7.8 ×109 cm −3. \(\chi _{\text {red},\nu =31}^{2}=1.3\). Reprinted with permission from Ref. [32] 2018 APS

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