Dielectron yields in p + d and p + p collisions at 4.9-GeV

Huang, H.Z.; Beedoe, S.; Bougteb, M.; Cailiu, J.; Carroll, J.; Hallman, T.; Heilbronn, L.; Igo, G.; Kirk, P.; Krebs, G.

doi:10.1016/0370-2693(92)91254-7

Dielectron yields in p + d and p + p collisions at 4.9-GeV

Aug, 1992

5 pages

Published in:

Phys.Lett.B 297 (1992) 233-237

Published: 1992

DOI:

10.1016/0370-2693(92)91254-7

Report number:

LBL-32808

Experiments:

BEVALAC

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Abstract: (Elsevier)

The dielectron yield in p + d and p + p collisions at a beam kinetic energy of 4.9 GeV has been measured using the Dilepton Spectrometer (DLS) at the Bevalac. The measured ratio of the yield in p + d to that in p + p collisions, 1.92±0.06, is in disagreement with the assumptions of model calculations applied to our ealier p +Be data, where it was found that p + n bremsstrahlung dominated other sources. While the measured ratio is consistent with a hadron-like origin of the dielectrons, the contributions of known hadronic decays are smaller than the measured yield from p + p collissions.

p deuteron: interaction
interaction: p deuteron
p p: interaction
interaction: p p
yield: dilepton
yield: ratio
mass spectrum: (2electron)
(2electron): mass spectrum
nucleon: bremsstrahlung
bremsstrahlung: nucleon

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Figures(0)

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