η-PHOTOPRODUCTION OFF 3He: SEARCH FOR η-MESIC NUCLEI

被引：0
|
作者：
Pheron, Francis [1 ]
机构：
[1] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2011年 / 26卷 / 3-4期
关键词：
Eta-meson; bound state; eta-mesic nuclei; photoproduction; resonances; EXCLUSIVE MEASUREMENT;
D O I：
10.1142/S0217751X11052645
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Photoproduction of eta-mesons off He-3 has been studied via the eta -> 2 gamma and eta -> 3 pi(0) decay modes at the tagged photon beam of the Mainz MAMI accelerator using the combined 4 pi Crystal Ball/TAPS calorimeter. The main motivation for this experiment was the search for eta-mesic nuclei. A possible signature for such states is a threshold enhancement of coherent eta-photoproduction similar to what has been observed in hadronic induced reactions at COSY.
引用
收藏
页码：722 / 724
页数：3
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