Experimental status of the GDH sum rule

被引：0

作者：

Arends, H ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-6500 Mainz, Germany

来源：

SPIN 2004: 16TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM | 2005年

关键词：

D O I：

10.1142/9789812701909_0017

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：

An experimental program to investigate the Gerasimov-Drell-Hearn (GDH) sum rule on protons and neutrons has been carried out by the GDH collaboration at MAMI (Mainz) and ELSA (Bonn), using circularly polarized photons and the Bonn-Bochum longitudinally polarized frozen-spin target together with two different detector setups. For the proton, results in the photon energy range 200 - 2985 MeV are published. Preliminary data from JLab extend the energy range to 5.2 GeV. For E-gamma < 800 MeV the helicity structure of partial reaction channels has been studied in detail at MAML Data from polarized deuterons have also been taken at photon energies 200 - 800 MeV (MAMI) and 815 - 1825 MeV (ELSA). Preliminary results and future perspectives are presented and discussed.

引用

页码：136 / 144

页数：9

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