e+ e- pairs from pi- A reactions

M. Effenberger; E. L. Bratkovskaya; W. Cassing; U. Mosel

doi:10.1103/PhysRevC.60.027601

e+ e- pairs from pi- A reactions

Nuclear Theory 2009-10-31 v2

Authors: M. Effenberger , E. L. Bratkovskaya , W. Cassing , U. Mosel

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Abstract

We calculate dilepton production for the reactions $\pi^-$ C and $\pi^-$ Pb at 1.3 GeV within a semi-classical BUU transport model and compare our results to a previously published calculation. We show that a modified treatment of the $\rho$ -meson production and propagation gives substantially different results. We, furthermore, discuss uncertainties related to the electromagnetic decay of the $\rho$ -meson and the elementary $\pi^- N \to e^+ e^- X$ channels.

Keywords

dilepton production in heavy-ion collisions meson production in high-energy collisions electron-positron annihilation cross sections

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@article{arxiv.nucl-th/9901039,
  title  = {e+ e- pairs from pi- A reactions},
  author = {M. Effenberger and E. L. Bratkovskaya and W. Cassing and U. Mosel},
  journal= {arXiv preprint arXiv:nucl-th/9901039},
  year   = {2009}
}

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12 pages, including 4 postscript figures

e+ e- pairs from pi- A reactions

Abstract

Keywords

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