Experimental verification of the GDH sum rule at ELSA and MAMI

被引：25
|
作者：
Helbing, K [1 ]
机构：
[1] Univ Erlangen Nurnberg, Inst Phys, D-91058 Erlangen, Germany
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2002年 / 105卷
关键词：
D O I：
10.1016/S0920-5632(01)01962-4
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
In order to verify the GDH sum rule for the first time the GDH-Collaboration measures the total photoabsorption cross section of circularly polarized real photons on longitudinally polarized nucleons in the photon energy range 0.14 - 3.1 GeV. These measurements are being pursued at the two electron accelerators MAMI in Mainz and ELSA in Bonn. The experimental setup of the ongoing data taking campaign is described and results for the proton up to 1.9 GeV are presented.
引用
收藏
页码：113 / 116
页数：4
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