e+ e- pairs from pi- A reactions
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 -meson production and propagation gives substantially different results. We, furthermore, discuss uncertainties related to the electromagnetic decay of the -meson and the elementary π- N e+ e- X channels.
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