加载中…
2009-10-06
Backward-angle photoproduction of eta meson from protons at E_gamma = 1.6 - 2.4 GeV
M. SumihamaD. S. AhnJ. K. AhnH. AkimuneY. AsanoW. C. ChangS. DateH. EjiriH. FujimuraM. FujiwaraS. FukuiS. HasegawaK. HicksT. HottaK. Imai0 T. IshikawaT. IwataY. KatoH. KawaiK. KinoH. KohriN. KumagaiT. MatsudaT. MatsumuraT. MibeM. MiyabeN. MuramatsuT. NakanoM. NiiyamaM. NomachiY. OhashiH. OhkumaT. OobaD. S. OshuevC. Rangacharyulu0 A. SakaguchiP. M. ShaginY. ShiinoA. ShimizuH. ShimizuY. SugayaY. ToiH. ToyokawaA. WakaiC. W. WangS. C. WangK. YoneharaT. YoritaM. YoshimuraM. YosoiR. G. T. Zegers
文献摘要
Differential cross sections for eta photoproduction off protons have been measured at E_gamma = 1.6 - 2.4 GeV in the backward direction. A bump structure has been observed above 2.0 GeV in the total energy. No such bump is observed in cross sections for eta’, omega and pi0 photoproductions. It is inferred that this unique structure in eta photoproduction is due to a baryon resonance with a large portion of ss-bar strongly coupled to the etaN channel.
讨论
0讲解博客
生成讲解博客的中文版本
AI智能校验
生成AI智能校验的中文版本