Da/a µ post-Newtonian deviations from
General Relativity (e.g. measured by g*)
proportionality factor:
10-5 ¸ 10-3
g*= g - 1 g Eddington parameter
g* < 10-3 by post Newtonian or pulsar tests
Da/a < 10-12 ¸10-13 by EP tests Þ g* < 10-7 ¸ 10-9 or 10-8 ¸ 10-10
The superior probing power of Equivalence Principle tests is beyond question !!!!
fractional differential acceleration between
bodies of different composition
falling in the gravitational field of a source mass
Scientific relevance of the
Equivalence Principle (III)