Abstract
The matrix elements of the electromagnetic current and the energy-momentum tensor for sharply localized states of spin-1 systems are considered. Their interpretation as local spatial densities of various characteristics of the considered system is discussed.
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Acknowledgments
We thank A. Filin and D. Möller for helpful discussions. This work was supported in part by BMBF (Grant No. 05P21PCFP1), by DFG and NSFC through funds provided to the Sino-German CRC 110 “Symmetries and the Emergence of Structure in QCD” (NSFC Grant No. 11621131001, DFG Project-ID 196253076 - TRR 110), by ERC NuclearTheory (grant No. 885150), by CAS through a President’s International Fellowship Initiative (PIFI) (Grant No. 2018DM0034), by the VolkswagenStiftung (Grant No. 93562), by the EU Horizon 2020 research and innovation programme (STRONG-2020, grant agreement No. 824093), and by the MKW NRW under the funding code NW21-024-A.
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Panteleeva, J.Y., Epelbaum, E., Gegelia, J. et al. Electromagnetic and gravitational local spatial densities for spin-1 systems. J. High Energ. Phys. 2023, 237 (2023). https://doi.org/10.1007/JHEP07(2023)237
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DOI: https://doi.org/10.1007/JHEP07(2023)237