Barbero-Immirzi Value from Experiment
Abstract
We consider General Relativity as a limit case of the Scalar-Tensor theory with Barbero-Immirzi field when the field tends to a constant. We use Shapiro time delay experimental limit of 1/w = (2.1 2.3)10-5 provided by the Cassini spacecraft to find the Barbero-Immirzi parameter value.
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