In-medium modifications of the S11(1535) resonance and η photoproduction -: art. no. 044601

被引：25
|
作者：
Lehr, J [1 ]
Post, M [1 ]
Mosel, U [1 ]
机构：
[1] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
来源：
PHYSICAL REVIEW C | 2003年 / 68卷 / 04期
关键词：
D O I：
10.1103/PhysRevC.68.044601
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：
We investigate the influence of possible in-medium modifications of the S-11(1535) in eta photoproduction in nuclei. Besides Fermi motion, Pauli blocking, and binding effects also collisional broadening is accounted for. The in-medium width is obtained from a realistic resonance-hole model. Results on eta photoproduction are obtained from a semiclassical Boltzmann-Uehling-Uhlenbeck transport model and compared with data. We find that calculations including a momentum dependent nucleon and resonance potential are in agreement with the recent KEK data. In contrast, collisional broadening has only little influence.
引用
收藏
页码：446011 / 446016
页数：6
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