Dielectron production in p+Be and Ca+Ca collisions at the Bevalac

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We discuss the physics objectives of the DLS program with some emphasis on the possible use of dileptons as a probe of pion dynamics in nuclear matter. Data on p + Be reactions at 1-5 GeV and Ca + Ca at 1 GeV/A are presented. The observation of a structure at twice the pion mass in the e/sup +/e/sup /minus// invariant mass spectra above 2 GeV beam energy and the excitation function for the p + Be reaction suggest that pion annihilation is the main dielectron source above 2 GeV. The dielectron mass spectrum from Ca + Ca at 1 ... continued below

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Pages: 13

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Roche, G. December 1, 1988.

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Description

We discuss the physics objectives of the DLS program with some emphasis on the possible use of dileptons as a probe of pion dynamics in nuclear matter. Data on p + Be reactions at 1-5 GeV and Ca + Ca at 1 GeV/A are presented. The observation of a structure at twice the pion mass in the e/sup +/e/sup /minus// invariant mass spectra above 2 GeV beam energy and the excitation function for the p + Be reaction suggest that pion annihilation is the main dielectron source above 2 GeV. The dielectron mass spectrum from Ca + Ca at 1 GeV/A exhibits an inverse slope larger than the one from p + Be at the same beam energy. 14 refs., 9 figs., 1 tab.

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Pages: 13

Notes

NTIS, PC A03/MF A01 - OSTI; 1.

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  • 17. INS international symposium on nuclear physics at intermediate energies, Tokyo, Japan, 15 Nov 1988

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  • Other: DE89007491
  • Report No.: LBL-26460
  • Report No.: CONF-8811171-2
  • Grant Number: AC03-76SF00098
  • Grant Number: FG02-88ER40413
  • Grant Number: FG03-88ER40424
  • Grant Number: FG05-88ER40445
  • Office of Scientific & Technical Information Report Number: 6206141
  • Archival Resource Key: ark:/67531/metadc1114034

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 1, 1988

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  • Feb. 22, 2018, 7:45 p.m.

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  • April 24, 2018, 7:02 p.m.

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Roche, G. Dielectron production in p+Be and Ca+Ca collisions at the Bevalac, article, December 1, 1988; [Berkeley,] California. (digital.library.unt.edu/ark:/67531/metadc1114034/: accessed April 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.