论文标题
来自气泡和t的核子形式因子的贡献
Contributions to the nucleon form factors from bubble and tadpole diagrams
论文作者
论文摘要
非局部手性有效理论用于研究核子的电磁和奇怪形式。气泡图和t t图包括在计算中。有了气泡和t图的贡献，只要低能常数$ c_1 $和$ c_2 $正确选择，获得的电磁形态就接近结果，而没有这些贡献。电磁和奇怪的形式因素仍然与实验数据吻合。
The nonlocal chiral effective theory is applied to investigate the electromagnetic and strange form factors of nucleon. The bubble and tadpole diagrams are included in the calculation. With the contributions from bubble and tadpole diagrams, the obtained electromagnetic form factors are close to the results without these contributions as long as the low energy constants $c_1$ and $c_2$ are properly chosen, while the magnitudes of strange form factors become larger. Both the electromagnetic and strange form factors are still in good agreement with the experimental data.
