e+ e- pairs from pi- A reactions

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.

12 pages, including 4 postscript figures

References in corpus (5)

• The Spectral Function of the Rho Meson in Nuclear Matter
• Low-mass dileptons and dropping rho meson mass
• Medium effects in the production and decay of vector mesons in pion-nucleus reactions
• $\rho$-meson properties at finite nuclear density
• $e^{+}{e}^{-}$ pairs from ${\pi }^{-}$A reactions

Cited by in corpus (30)

• First observation of in-medium modifications of the omega meson
• Medium Modified Cross Sections, Temperature and Finite Momentum Effects for Antikaon Production in Heavy-Ion Collisions
• Dilepton production and off-shell transport dynamics at SIS energies
• e^+e^- Pair Production from $\gamma$ A Reactions
• Absorption of the $\omega$ and $\varphi$ Mesons in Nuclei
• Search for medium modification of the $\rho$ meson
• Hadron attenuation in deep inelastic lepton-nucleus scattering
• Dilepton production in proton-induced reactions at SIS energies with the GiBUU transport model
• Light Vector Mesons in the Nuclear Medium
• Dilepton production in heavy ion collisions at intermediate energies
• Photoproduction of phi mesons from nuclei
• Inclusive omega photoproduction off nuclei
• Photoproduction of mesons in nuclei at GeV energies
• Quantum interference of rho0- and omega-mesons in the pi N -> e+e- N reaction
• Dilepton Radiation from Strongly Interacting Systems
• $K^{-}/K^{+}$ ratio in heavy-ion collisions at GSI with an antikaon self-energy in hot and dense matter
• Medium Modifications of Hadron Properties and Partonic Processes
• Soft Modes, Resonances and Quantum Transport
• Hadron formation in high energy photonuclear reactions
• $e^{+}{e}^{-}$ production in $pA$ reactions at SIS energies
• In-medium Properties of Hadrons -- Observables
• ${\pi }^{+}{\pi }^{-}$ Emission from Coherent ${\rho }^0$ Propagation in Nuclei
• In-Medium Properties of Hadrons - Observables II
• Broadening of $\rho (\to e^{+}{e}^{-})$ meson produced coherently in the photonuclear reaction
• Low energy ω(\to π^0 γ) meson photoproduction in the nucleus
• Dilepton production in elementary and in heavy ion reactions
• Absorption of $\omega$ and $\varphi$ mesons in the inclusive photonuclear reaction
• Nuclear effects on the $\rho$ meson produced in the inclusive photonuclear reaction
• ${\pi }^0\gamma$ invariant mass distribution in the low energy $\gamma p\to \omega p$ reaction
• Dilepton production at SIS energies