Publications
Publication Information
| Title | Mechanical structure of a spin-1 particle |
| Authors | Jun-Young Kim, Bao-Dong Sun, Dongyan Fu, Hyun-Chul Kim |
| JLAB number | JLAB-THY-23-3759 |
| LANL number | arXiv:2208.01240 |
| Other number | DOE/OR/23177-5779 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review D Volume 107 Issue 054007 | |
| Publication Abstract: | We investigate the mechanical structure of a spin-1 particle. Introducing three different frameworks, i.e., the three-dimensional (3D) Breit frame, the two-dimensional (2D) Breit frame, and the 2D infinite momentum frame (equivalently the two-dimensional Drell-Yan frame), we scrutinize the 2D and 3D energy?momentum tensor (EMT) distributions in these frames. We first derive the EMT distributions in the 2D Breit frame by performing the Abel transformation. The mass distribution in the 2D Breit frame contains an additional monopole contribution induced geometrically. The pressure distribution in the 2D Breit frame also gets an induced monopole structure. When the Lorentz boost is carried out, the mass distribution in the 2D infinite-momentum frame acquires the induced dipole term. Similarly, we also have the induced dipole contributions to the pressure and shear-force densities. We visualize the 2D mass distributions when the spin?1 particle is polarized along the x- and z-axes. We observe that the 2D mass distribution in the infinite momentum frame exhibit clearly the induced dipole structure when the spin-1 particle is polarized along the x-axis. We also discuss the strong force fields inside a polarized spin-1 particle. |
| Experiment Numbers: | |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevD.107.054007 |
| Accepted Manuscript: | PhysRevD.107.054007.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |