US-Germany Cooperative Research: Photoproduction of Mesons above the Second Resonance Region

该奖项支持夏洛特·埃尔斯特和俄亥俄大学的学生与德国Juelich研究中心核物理研究所的西格弗里德·克雷瓦尔德合作。这项研究将集中于发展矢量介子欧米伽和Rho的交换、核子交换和S波共振的模型。通过研究不同产生机制对极化观测值的影响，可能为可能的实验研究提供建议。由于氚的ETA-本初光产生接近产生阈值，也将有可能研究介子-核子末态相互作用的影响。在核子-核子相互作用的许多方面的丰富经验，以及发展介子-核子相互作用的历史，使美国和德国的合作能够将复杂的终态相互作用纳入光产生计算。双方结合起来的互补专业知识为开展拟议的研究项目和在国际环境中培训初级研究人员创造了一个理想的环境。

0336518ElsterThis award supports Charlotte Elster and students from Ohio University in a collaboration with Siegfried Krewald of the Institute of Nuclear Physics at the Research Center in Juelich, Germany. The research will focus on developing a model of the exchange of the vector mesons omega and rho, the nucleon exchange, and S-wave resonance. By studying the effect of different production mechanisms on polarization observables, suggestions for possible experimental investigations will become possible. Since the eta-prime photoproduction from the deuteron is close to the production threshold, it will also be possible to study the effects of the meson-nucleon final-state interaction. Extensive experience with many aspects of the nucleon-nucleon interaction, along with a history of developing meson-nucleon interactions, allows the US-German collaboration to include sophisticated final-state interaction into photoproduction calculation. The combined complementary expertise that the two sides bring to bear creates an ideal environment for carrying out the proposed research project and for training junior researchers in an international setting.