Dilepton production from pion-pion annihilation in a nuclear medium

C. L. Korpa, L. Xiong, C. M. Ko, P. J. Siemens

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We have calculated the dilepton production rate from pion-pion annihilation in hot and dense nuclear matter. The effect of the strong pion-nucleon interaction on both the pion spectrum and its electromagnetic annihilation vertex has been included in the delta-hole model. We find that the previously predicted cancellation of these two effects for dileptons with zero three-momentum is substantially reduced when their momenta are finite. Including the finite width of delta removes the cancellation even for dileptons with zero three-momentum.

Original languageEnglish
Pages (from-to)333-336
Number of pages4
JournalPhysics Letters B
Volume246
Issue number3-4
DOIs
Publication statusPublished - Aug 30 1990

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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