EPJ Web of Conferences
Volume 37, 2012MESON 2012 – 12th International Workshop on Production, Properties and Interaction of MESONS
|Number of page(s)||6|
|Published online||06 December 2012|
Meson production in hadron- and photon-induced reactions
1 Department of Physics and Astronomy, University of Georgia, Athens, GA 30602, USA
2 Helmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universität Bonn, Nußallee 14-16, 53115 Bonn, Germany
3 Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
4 Institute for Nuclear Studies and Department of Physics, The GeorgeWashington University, Washington, DC 20052, USA
5 Institute for Advanced Simulations, Forschungszentrum Jülich, 52425 Jülich, Germany
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The meson production and associated excited-baryon-analysis program by the Jülich-Athens/GA-Washington/DC Collaboration is presented. The program’s analysis is based on a dynamical coupled-channels approach developed by the Collaboration [1-4], where the basic symmetries, such as the two-body unitarity, analyticity, and gauge invariance are respected. In particular, gauge invariance is enforced as dictated by the generalized Ward-Takahashi identity. In the hadronic reactions sector, the πN, ηN, KΛ, and K∑ channels are included, in addition to the effective ππN channels σN, ρN, and πΔ. Energies up to √s = 2 GeV are considered. In the photon-induced reactions sector, the neutral and charged pion photoproduction processes are considered up to √s = 1.65 GeV so far . These are currently being extended to higher energies including the ηN, KΛ, and K∑ channels.
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