General Relativity and Gravitation

, Volume 26, Issue 12, pp 1177-1185

First online:

A geometric definition of mass

  • Gustavo González-MartinAffiliated withDepartamento de Física, Universidad Simon Bolivar

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An invariant definition of mass is given, within the context of a geometric unified theory, in terms of the geometric connection and the matter current. This geometric mass corresponds to the concept of self energy and leads to the mass parameter in Dirac's equation.