Pion-nucleus reactions in a microscopic transport model

Details Pion-nucleus reactions in a microscopic transport model Pion-nucleus reactions in a microscopic transport model

1993-07-07

arxiv.org/abs/nucl-th/9307008v1

Nucl.Phys. A572 (1994) 657-681

Physics

Nuclear Physics

Nuclear Theory

31 pages, UGI-93-04

Scientific paper

10.1016/0375-9474(94)90405-7

We analyse pion-nucleus reactions in a microscopic transport model of the BUU type, which propagates nucleons, pions, deltas and N(1440)-resonances explicitly in space and time. In particular we examine pion absorption and inelastic scattering cross sections for pion kinetic energies T(pi) =85-315MeV and various target masses. In general, the mass-dependence of the experimental data is well described for energies up to the delta-resonance (\approx 160 MeV) while the absorption cross sections are somewhat overestimated for the higher energies. In addition we study the possible dynamical effects of delta- and pion-potentials in the medium on various observables as well as alternative models for the in-medium delta-width.

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