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arXiv · 2206.12903

Minkowski's lost legacy and hadron electromagnetism

Yang Li·Wen-bo Dong·Yi-liang Yin·Qun Wang·James P. Vary
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Abstract

We revisit Minkowski's lost legacy on relativistic electromagnetism in order to resolve long-standing puzzles over the charge distribution of relativistic systems like hadrons. Hadrons are unique relativistic electromagnetic systems characterized by their comparable size and Compton wavelength $r_h \sim \lambda_C$. As such, it was recently realized that the traditional Sachs definition of the charge distribution based on a non-relativistic formula is invalid. We explain that this is the same problem pursued by Lorentz, Einstein and others, on the electromagnetism of a moving body. We show how various charge distributions proposed in hadronic physics naturally emerge as the multipole moment densities in the macroscopic theory of relativistic electromagnetism.

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Yang Li, Wen-bo Dong, Yi-liang Yin, Qun Wang, James P. Vary. 2022-06-26. Minkowski's lost legacy and hadron electromagnetism. https://doi.org/10.1016/j.physletb.2023.137676

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