First measurement of the hydrogen spin-exchange collision cross-section in the low temperature region
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چکیده
The spin-exchange collision cross-section for hydrogen atoms has been measured for the first time in the low temperature range 40–100 K by using the polarized hydrogen gas target of the HERMES experiment at DESY (Hamburg, Germany). The results agree with a previous measurement in the overlapping temperature region 80–100 K, while seem to hint an increasing behaviour with temperature in the region 50–80 K. PACS. 39.10.+j Atomic and molecular beam sources and techniques – 13.88.+e Polarization in interactions
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تاریخ انتشار 2008