Constraints on scalar-tensor theory of gravity by solar system tests

We study the motion of particles in the background of a scalar-tensor theory of gravity in which the scalar field is kinetically coupled to the Einstein tensor. We constrain the value of the derivative parameter z through solar system tests. By considering the perihelion precession we obtain the constraint root z/m(p) > 2.6 x 10(12) m, the gravitational redshift root z/m(p) > 2.7 x 10 (10) m, the deflection of light root z/m(p) > 1.6 x 10(11) m, and the gravitational time delay root z/m(p) > 7.9 x 10(12) m; thereby, our results show that it is possible to constrain the value of the z parameter in agreement with the observational tests that have been considered.