2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93393New time-dependent integrals of motion are found for stimulated Raman scattering. Explicit formula for the photon-number probability distribution as a function of the laser-field intensity and the medium parameters is obtained in terms of Hermite polynomials of two variables.LATEX, 17 pages, accepted for publication in Journal of Russian Laser Research (Plenum Press, New York), Volume 18, Number 4, 1997Quantum Physicstext