Formation ofη-mesic nuclei by(π, N) reaction and N*(1535) in medium
Formation ofη-mesic nuclei by(π, N) reaction and N*(1535) in medium
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通过(π, N)反应和介质中的N*(1535)形成η-mesic核
DOI：
10.1103/physrevc.80.025205
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Satoru Hirenzaki
中科院分区：
文献类型：
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作者：
Hideko Nagahiro;Daisuke Jido;Satoru Hirenzaki
我们计算了核反应中-核系统的形成谱，这可以在现有和/或即将建立的设施上进行，包括日本质子加速器研究综合体，以研究核-核相互作用。基于该系统的优势，中子核是研究重子共振介质中性质的合适系统，如减小核中和核中的质量差，从而影响和空穴模能级结构。我们发现，通过中间核的形成谱可以获得关于介质内和核之间相互作用的明确信息。我们还通过给出在可能的实验设置下计算的()反应的几个光谱来讨论实验的可行性。原子核衰变对的一致测量有助于我们减少背景。
We calculate formation spectra of the-nucleus systems in the () reactions with nuclear targets, which can be performed at existing and/or forthcoming facilities, including the Japan Proton Accelerator Research Complex, to investigate the-nucleus interaction. Based on thedominance in thesystem, the-mesic nuclei are suitable systems for the study of in-medium properties of thebaryon resonance, such as reduction of the mass difference ofandin the nuclear medium, which affects the level structure of theand-hole modes. We find that clear information on the in-medium- and-nucleus interactions can be obtained through the formation spectra of the-mesic nuclei. We also discuss the experimental feasibilities by showing several spectra of the () reactions calculated with possible experimental settings. Coincident measurements of thepairs from thedecays in nuclei help us to reduce backgrounds.