Forward pion-nucleon charge ezchange reaction and Regge constraints

摘要：

We present our recent study of pion-nucleon charge exchange amplitudes above 2 GeV. We analyze the forward pion-nucleon charge exchange reaction data in a Regge model and compare the resulting amplitudes with those from the Karlsruhe-Helsinki and George-Washington-University partial-wave analyses. We explore possible high-energy constraints for theoretical baryon resonance analyses in the energy region above 2 GeV. Our results show that for the pion-nucleon charge exchange reaction, the appropriate energy region for matching meson-nucleon dynamics to diffractive scattering should be around 3 GeV for the helicity flip amplitude.

关键词： pion-nucleon interaction Regge model

作者: HUANG Fei A.Sibirtsev S.Krewald C.Hanhart J.Haidenbauer U.-G.Mei(β)ner

作者单位: Department of Physics and Astronomy,University of Georgia,Athens,Georgia 30602,USA Helmholtz-Institut fur Strahlen-und Kernphysik und Bethe Center for Theoretical Physics,Universitat Institut fur Kernphysik and Jiilich Center for Hadron Physics,Forschungszentrum Jülich,D-52425 Jülic Helmholtz-Institut fur Strahlen-und Kernphysik und Bethe Center for Theoretical Physics,Universitat

会议类型: 国际会议

会议名称: The 12th International Workshop on the Physics Ezcited Nucleon(2009核子共振态物理国际研讨会)

会议地点: 北京

会议语种:英文

页码: 1318-1322

在线出版日期: 2009-04-19（万方平台首次上网日期，不代表论文的发表时间）