PHOTOPRODUCTION OF MESONS OFF LIGHT NUCLEI - THE SEARCH FOR η-MESIC NUCLEI

被引：0
|
作者：
Krusche, B. [1 ]
Pheron, F. [1 ]
Magrbhi, Y. [1 ]
机构：
[1] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland
来源：
ACTA PHYSICA POLONICA B | 2010年 / 41卷 / 10期
关键词：
NEAR-THRESHOLD PHOTOPRODUCTION; EXCLUSIVE MEASUREMENT; PHOTON SPECTROMETER; BEAM ASYMMETRY; BOUND-STATES; QUASI-FREE; PROTON; MICROTRON; DEUTERON; PI(-);
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Photoproduction of eta mesons off light nuclei (d, (3)He, (7)Li) has been measured at the tagged photon beam of the Mainz MAMI accelerator with the combined Crystal Ball/TAPS detection system. Special attention was given to the threshold behavior of the reactions in view of possible indications for the formation of (quasi-) bound eta-nucleus states, so-called eta-mesic nuclei. A very strong threshold enhancement of coherent eta photoproduction off (3)He was found and coherent eta photoproduction off (7)Li was observed for the first time. Preliminary results will be discussed.
引用
收藏
页码：2249 / 2259
页数：11
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