Monopole and quadrupole contributions to the angular momentum density
Monopole and quadrupole contributions to the angular momentum density
复制标题
单极子和四极子对角动量密度的贡献
DOI:
10.1016/j.physletb.2019.07.033
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发表时间:
2019
影响因子:
4.4
通讯作者:
Tezgin, Kemal
中科院分区:
文献类型:
--
作者:
Schweitzer, Peter;Tezgin, Kemal
The energy-momentum tensor form factors contain a wealth of information about the nucleon. It is insightful to visualize this information in terms of 3D or 2D densities related by Fourier transformations to the form factors. The densities associated with the angular momentum distribution were recently shown to receive monopole and quadrupole contributions. We show that these two contributions are uniquely related to each other. The quadrupole contribution can be viewed as induced by the monopole contribution, and contains no independent information. Both contributions however play important roles for the visualization of the angular momentum density.
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