e+ e- pairs from pi- A reactions

Details e+ e- pairs from pi- A reactions e+ e- pairs from pi- A reactions

1999-01-15

arxiv.org/abs/nucl-th/9901039v2

Phys.Rev. C60 (1999) 027601

Physics

Nuclear Physics

Nuclear Theory

12 pages, including 4 postscript figures

Scientific paper

10.1103/PhysRevC.60.027601

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.

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