Pion induced double charge exchange reactions in the Delta resonance region

Details Pion induced double charge exchange reactions in the Delta resonance region Pion induced double charge exchange reactions in the Delta resonance region

2006-07-10

arxiv.org/abs/nucl-th/0607016v1

Phys.Rev.C74:044610,2006

Physics

Nuclear Physics

Nuclear Theory

14 pages,9 figures

Scientific paper

10.1103/PhysRevC.74.044610

We have applied the Giessen BUU (GiBUU) transport model to the description of the double charge exchange (DCX) reaction of pions with different nuclear targets at incident kinetic energies of 120-180 MeV . The DCX process is highly sensitive to details of the interactions of pions with the nuclear medium and, therefore, represents a major benchmark for any model of pion scattering off nuclei at low and intermediate energies. The impact of surface effects, such as the neutron skins of heavy nuclei, is investigated. The dependence of the total cross section on the nuclear mass number is also discussed. We achieve a good quantitative agreement with the extensive data set obtained at LAMPF. Furthermore, we compare the solutions of the transport equations obtained in the test-particle ansatz using two different schemes - the full and the parallel ensemble method.

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