Eta and dilepton production in heavy-ion reactions

G. Wolf, W. Cassing, U. Mosel

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We present a nonperturbative dynamical study of η-meson and pion production in heavy-ion collisions from 1 to 2 GeV/A bombarding energy. The dynamical evolution of the nucleus-nucleus collision is described by a transport equation of the Boltzmann-Uehling-Uhlenbeck type. Our model evolves phase-space distribution functions for nucleons, Δ's, N(1440)'s, N(1535)'s, pions and η's with their isospin degrees of freedom. Furthermore, we show results for dilepton yields in heavy-ion collisions at bombarding energies of 1 and 2 GeV/A. All known sources of dileptons are taken into account. We investigate in particular the sensitivity of the calculated yields to predicted changes of the ρ{variant} meson in dense matter and discuss the feasibility to measure the time-like electromagnetic form factor of hadrons and their medium-dependence through the observation of dileptons.

Original languageEnglish
Pages (from-to)139-150
Number of pages12
JournalNuclear Physics A
Volume545
Issue number1-2
DOIs
Publication statusPublished - Aug 3 1992

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ionic collisions
heavy ions
pions
mesons
nuclei
nucleons
hadrons
form factors
degrees of freedom
distribution functions
electromagnetism
collisions
energy
sensitivity

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Eta and dilepton production in heavy-ion reactions. / Wolf, G.; Cassing, W.; Mosel, U.

In: Nuclear Physics A, Vol. 545, No. 1-2, 03.08.1992, p. 139-150.

Research output: Contribution to journalArticle

Wolf, G. ; Cassing, W. ; Mosel, U. / Eta and dilepton production in heavy-ion reactions. In: Nuclear Physics A. 1992 ; Vol. 545, No. 1-2. pp. 139-150.
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