München 2009 – scientific programme

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T: Fachverband Teilchenphysik

T 13: QCD (Theorie) 3 / Elektroschwache Physik (Theorie)

T 13.3: Talk

Wednesday, March 11, 2009, 17:15–17:30, M109

Coherent Pion Production — •Dario Schalla and Emmanuel A. Paschos — TU Dortmund, Otto-Hahn-Straße 4, 44221 Dortmund

Within the analysis of neutrino oscillation experimental data a good knowledge of neutrino-nucleus scattering cross sections is required because it has direct influence on the accuracy of the results. Whilst most reaction channels are theoretically well described, coherent pion production remains quite uncertain. This process is the production of a pion by neutrinos scattering off nuclei with the nuclei not changing their quantum numbers. This happens via both charged and neutral currents. In the talk these processes will be discussed within the Gounaris-Kartavtsev-Paschos model which is based on the partially conserved axial vector current hypotheses that relates the coherent cross section to simple elastic scattering of pions and nuclei. The numerical estimations within a neutrino energy range from 1 to 10 GeV will be presented for an advanced version of the original GKP model.