Dilepton production in pion-nucleon collisions in an effective field theory approach

Abstract

We present a model of electron-positron pair production in pion-nucleon collisions in the exclusive reaction πN -> Ne^+e^-. The model is based on an effective field theory approach, incorporating 16 baryon resonances below 2 GeV. Parameters of the model are fitted to pion photoproduction data. We present the resulting dilepton invariant mass spectra for π^- p collisions up to sqrt(s)=1.9 GeV center-of-mass collision energy. These results are meant to give predictions for the planned experiments at the HADES spectrometer in GSI, Darmstadt.

arXiv commentpublished version

References in corpus (20)

• Rho-omega mixing, vector meson dominance and the pion form-factor
• P-Wave Polarization of the $\rho$-Meson and the Dilepton Spectrum in Dense Matter
• Photon production through $A_1$ resonance in high energy heavy ion collisions
• Origin of the low-mass electron pair excess in light nucleus-nucleus collisions
• Form factors and photoproduction amplitudes
• Inclusive Dielectron Cross Sections in p+p and p+d Interactions at Beam Energies from 1.04 to 4.88 GeV
• Di-Electron Bremsstrahlung in Intermediate-Energy pn and Dp Collisions
• Effective Lagrangian Approach to pion photoproduction from the nucleon
• Role of baryonic resonances in the dilepton emission in nucleon-nucleon collisions
• Electromagnetic transition form factors and dilepton decay rates of nucleon resonances
• Regge phenomenology of pion photoproduction off the nucleon at forward angles
• Electromagnetic Couplings of Nucleon Resonances
• Dilepton production in proton-proton and quasifree proton-neutron reactions at 1.25 GeV
• e^+e^- production from pp reactions at BEVALAC energies
• Dilepton decays of baryon resonances
• Effect of form factors in fits to photoproduction data
• Di-Electrons from Resonances in Nucleon-Nucleon Collisions
• Baryonic contributions to the dilepton spectrum of nucleon-nucleon collisions
• Dilepton production in nucleon-nucleon collisions reexamined
• Di-electrons from $\eta$ meson Dalitz decay in proton-proton collisions

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• Meson cloud contributions to the Dalitz decays of decuplet to octet baryons
• Higher spin fields with reversed spin-statistics relation
• Baryon octet and decuplet phenomenology in a three-flavor extended linear sigma model
• Dilepton Production in Transport-based Approaches
• Polarization and dilepton angular distribution in pion-nucleon collisions
• Dilepton and $\varphi$ meson production in elementary and nuclear collisions at the NICA fixed target experiment