由氘核康普顿散射得到核子极化率及其对手征幂次计数的启示
核理论
2017-08-23 v1
摘要
简要综述手征有效场论中的氘核康普顿散射，包括规范不变性与正确的 Thomson 极限。我们从全部 100 MeV 以下康普顿数据模型无关地确定了核子在零能下的同位旋标量、自旋无关偶极极化率：α_{E1}^s=11.3±0.7_{stat}±0.6_{Baldin}±1_{theory}, β_{M1}^s=3.2∓0.7_{stat}±0.6_{Baldin}±1_{theory}，单位均为 10^{-4} fm^3。因此质子与中子极化率在（主要为统计的）误差范围内相同。
引用
@article{arxiv.nucl-th/0611074,
title = {Nucleon Polarisabilities from Deuteron Compton Scattering, and Its Lessons for Chiral Power Counting},
author = {Harald W. Griesshammer},
journal= {arXiv preprint arXiv:nucl-th/0611074},
year = {2017}
}
备注
3 pages LaTeX2e, including 1 figures in 2 .eps files embedded with includegraphicx. Contribution to the 5th International Workshop on Chiral Dynamics, Theory and Experiment, Durham/Chapel Hill NC (USA), 18th -- 22nd September 2006. To be published in the proceedings