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arXiv · nucl-th/9901039

e+ e- pairs from pi- A reactions

M. Effenberger·E. L. Bratkovskaya·W. Cassing·U. Mosel
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Abstract

We calculate dilepton production for the reactions $π^-$C and $π^-$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 $ρ$-meson production and propagation gives substantially different results. We, furthermore, discuss uncertainties related to the electromagnetic decay of the $ρ$-meson and the elementary $π^- N \to e^+ e^- X$ channels.

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M. Effenberger, E. L. Bratkovskaya, W. Cassing, U. Mosel. 1999-04-29. e+ e- pairs from pi- A reactions. https://doi.org/10.1103/physrevc.60.027601

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