ENERGY AND RELATIVISTIC CLOCK RATES IN 5 DIMENSIONS

In the framework of a Kaluza-Klein-like scheme, based on a five-dimens ional Riemannian space in which energy plays the role of the fifth dim ension, we discuss a class of solutions of the five-dimensional Einste in equations in vacuum, which allows us to recover the energy-dependen t phenomenological metric for gravitation, recently derived from the a nalysis of some experimental data concerning the slowing down of clock rates in the gravitational field of Earth.