2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/165649The small angle scattering (by a gravitational field) of classical and quantum particles is considered and compared. It is suggested that the differences in small angle scattering of particles with spin 0, 1, 2 are due to the nonzero probability of forward scattering for particles described by a wave packet. It is suggested that measurements of the deflection of light in the vicinity of the Sun will decide which coordinate system is the privileged one.11 pages, no figuresGeneral Relativity and Quantum Cosmologytext