Realized in the Vicinity of the Super-massive Spining Black Hole in a Galaxy Center? postprint

Abstract: This paper discusses the mass-energy relationship proposed by Einstein. That equations suggests the possibility that energy and matter may be converted into each other. It is well known that matter can be converted into energy via nuclear reaction. But whether energy can be converted into matter in some conditions? This paper discusses this issue.The relevant experiments in particle physics are reviewed. Especially, there is one type of model about mass loading in black hole jets. We suggest that this model likely serves as an example of energy-to-matter conversion.