In 2+1 AdS gravity, the mass of a point particle defined as the integral of local energy density over a static slice equals the angular deficit 1-c_a in the zero-size limit, independent of the matter model, and is not the BTZ mass parameter.
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Models of a point particle in a three-dimensional AdS universe
In 2+1 AdS gravity, the mass of a point particle defined as the integral of local energy density over a static slice equals the angular deficit 1-c_a in the zero-size limit, independent of the matter model, and is not the BTZ mass parameter.