Mass and transverse momentum dependence of dielectron production in p+d and p+p collisions at 4.9 gev

Dielectron production in [ital p]+[ital d] and [ital p]+[ital p] collisions at the beam kinetic energy of 4.9 GeV has been measured with the Dilepton Spectrometer. Features of the dielectron cross section have been studied with cuts on the mass and transverse momentum of the pairs. The spectra for several regions of phase space are presented as a function of the pair mass and transverse momentum.