Measurement of the neutron electric form factor in the reaction 3(H)over-right-arrowe((e)over-right-arrow, e′n)pp at MAMI

被引：0

作者：

Schlimme, B. S. ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55128 Mainz, Germany

来源：

19TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM (SPIN2010), PT 2 | 2011年 / 295卷

关键词：

SCATTERING; (GEV/C)(2); NUCLEON;

D O I：

10.1088/1742-6596/295/1/012108

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：

A measurement of the ratio G(E)(n)/G(M)(n) at a four momentum transfer Q(2) = 1.5 (GeV/c)(2) has been carried out at the Mainz Microtron in 2008 in order to extract the electric Sachs form factor of the neutron (G(E)(n)) with the magnetic form factor (G(M)(n)) as input. MAMI-C provided a 1.5 GeV polarized electron beam, a polarized (3)He gas target served as an effective polarized neutron target to allow the study of the process (n) over right arrow((e) over right arrow, e'n). The scattered electrons were detected with a magnetic spectrometer of the A1-collaboration. To detect the recoil neutrons in coincidence with the electrons, a nucleon detector was installed. It consisted of a plastic scintillator array inside a heavy lead shield. Exploiting beam helicity asymmetries for different target polarization orientations, G(E)(n)/G(M)(n) can be extracted.

引用

页数：5

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