Inclusive Dielectron Cross Sections in p+p and p+d Interactions at Beam Energies from 1.04 to 4.88 GeV

Abstract

Measurements of dielectron production in p+p and p+d collisions with beam kinetic energies from 1.04 to 4.88 GeV are presented. The differential cross section is presented as a function of invariant pair mass, transverse momentum, and rapidity. The shapes of the mass spectra and their evolution with beam energy provide information about the relative importance of the various dielectron production mechanisms in this energy regime. The p+d to p+p ratio of the dielectron yield is also presented as a function of invariant pair mass, transverse momentum, and rapidity. The shapes of the transverse momentum and rapidity spectra from the p+d and p+p systems are found to be similar to one another for each of the beam energies studied. The beam energy dependence of the integrated cross sections is also presented.

15 pages and 16 figures

References in corpus (10)

• Dielectron Cross Section Measurements in Nucleus-Nucleus Reactions at 1.0 A GeV
• Dilepton Production in Nucleon-Nucleon Interactions
• Microscopic Model of the Time Like Electromagnetic Form Factor of the Nucleon
• Dilepton Production in Nucleon-Nucleon Reactions With and Without Hadronic Inelasticities
• Electromagnetic Form Factor of the Nucleon in the Time-like Region
• Realistic Interactions and Dilepton production off pp-collisions
• The effect of electro-magnetic formfactors on dilepton production off pp-collisions
• Dilepton production from p-p to Ca-Ca at the Bevalac
• Decay Anisotropy of $e^{+}{e}^{-}$ Sources from $pN$ and $pd$ collisions
• Another Look at ``soft'' lepton pair production in nucleon-nucleon bremsstrahlung

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