Cross Sections for the Collisions of Alkaline Earth Atoms
نویسنده
چکیده
The total attenuation cross sections, a*, were measured for collisions of an excited atomic beam of Mg, Ca or Sr with a target of Cl2 molecules. The experimental o* values equal: 85 Ä2, 100 Ä2 and 180 Ä2 for Mg*, Ca* and Sr*, respectively. Moreover, the reactive cross sections, OR were calculated, assuming the "harpoon mechanism" for the reactions in question. The obtained values are: OR* (Mg* + Cl2) ^ 61 Ä2, <TR* (Ca* + Cl2) ^ 102 Ä2 , OR* (Sr* + Cl2) ^ 130 A2 . The good agreement between the experimental and theoretical values shows that for this type of reaction the "harpoon mechanism" takes place.
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