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

页数：6

共 50 条

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