The Neutron Skin in Neutron-Rich Nuclei at Jefferson Lab

被引：0
|
作者：
Dalton, Mark M. [1 ]
机构：
[1] Univ Virginia, Charlottesville, VA 22903 USA
来源：
WORKSHOP TO EXPLORE PHYSICS OPPORTUNITIES WITH INTENSE, POLARIZED ELECTRON BEAMS AT 50-300 MEV | 2013年 / 1563卷
关键词：
Neutron skin; neutron distribution in heavy nuclei; elastic electron-scattering; parity violation; weak charge distribution;
D O I：
10.1063/1.4829412
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Jefferson Lab program to measure the symmetry energy of neutron-rich nuclear matter, using precision electroweak methods, is progressing well. The initial measurement by the PREX experiment, leading to a 2-sigma determination of the "neutron skin" in Pb-208, has been published. Design and preparation for a further, more-precise measurement on Pb-208 is progressing well and there is general acceptance of the great advantage to a further measurement on Ca-48. The surprising ancillary result that the beam-normal single-spin asymmetry for Pb-208 is consistent with zero is also now in the literature. This paper will discuss the current experimental situation of the program.
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收藏
页码：212 / 214
页数：3
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