the conversion of a gamma-ray photon into an electron and a positron only.
| 单词 | θ79107 | 
| 释义 | the world > matter > physics > atomic physics > particle physics > particle avoiding strong interaction > electron > 			[noun]		 > conversion into electron and positron (2)		 pair production1934 the conversion of a gamma-ray photon into an electron and a positron only. Subcategories:— 			appearance or disappearance of pairs			(1)		  | 
	
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