A versatile method for simulating pp ppe+e- and dp pne+e-pspec reactions

F. Dohrmann; I. Fröhlich; T. Galatyuk; R. Holzmann; P. K. Kählitz; B. Kämpfer; E. Morinière; Y. C. Pachmayer; B. Ramstein; P. Salabura; J. Stroth; R. Trebacz; J. Van de Wiele; J. Wüstenfeld

doi:10.1140/epja/i2010-11012-3

2021 Impact factor 3.131

Hadrons and Nuclei

Open Access

Eur. Phys. J. A (2010) 45: 401-411
https://doi.org/10.1140/epja/i2010-11012-3

Special Article - Tools for Experiment and Theory

A versatile method for simulating pp ppe⁺e^- and dp pne⁺e^-p_spec reactions

F. Dohrmann¹^,a, I. Fröhlich²^,b, T. Galatyuk², R. Holzmann³, P. K. Kählitz¹, B. Kämpfer¹, E. Morinière⁴, Y. C. Pachmayer², B. Ramstein⁴, P. Salabura³^,5, J. Stroth²^,3, R. Trebacz⁵, J. Van de Wiele⁴ and J. Wüstenfeld¹

¹ Institut für Strahlenphysik, Forschungszentrum Dresden-Rossendorf, 01314, Dresden, Germany
² Institut für Kernphysik, Goethe-Universität, 60438, Frankfurt, Germany
³ GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291, Darmstadt, Germany
⁴ Institut de Physique Nucléaire d’Orsay, CNRS/IN2P3, 91406, Orsay Cedex, France
⁵ Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059, Kraków, Poland

Received: 25 November 2009
Revised: 1 June 2010
Accepted: 5 July 2010
Published online: 25 July 2010

Abstract

We have developed a versatile software package for the simulation of di-electron production in pp and dp collisions at moderate beam kinetic energies (1-2GeV). Particular attention has been paid to incorporate different descriptions of the Dalitz decay Ne ⁺ e ^- via a common interface. In addition, suitable parameterizations for the virtual bremsstrahlung process NN NNe ⁺ e ^- based on one-boson exchange models have been implemented. Such simulation tools with high flexibility of the framework are important for the interpretation of the di-electron data taken with the HADES spectrometer and demonstrates the wide applicability within the field of nuclear and hadronic physics.