Inclusive Pion Double Charge Exchange above 0.5 GeV

Details Inclusive Pion Double Charge Exchange above 0.5 GeV Inclusive Pion Double Charge Exchange above 0.5 GeV

1994-12-15

arxiv.org/abs/nucl-th/9412023v2

Physics

Nuclear Physics

Nuclear Theory

17 pages, 8 figures, LaTeX

Scientific paper

A cascade model has been developed to study pion induced multichannel reactions (quasielastic, SCX, DCX, absorption and pion production) at pion energies above 0.5 GeV. Special attention has been paid to pion double charge exchange. Pion production is a determinant feature in the high energy pion nucleus reactions, and the DCX signal not related to pion production is sizeable only at forward angles and for high energy outgoing pions. The contribution to DCX of the conventional mechanism, with two quasielastic SCX steps decreases very fast as a function of the energy and reaches very low values at energies above 0.7 GeV. This opens the opportunity of having sizeable contributions of exotic mechanisms that are negligible at the delta resonance energies.

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