Publications
Publication Information
| Title | Partonic angular momentum in the nucleon's chiral periphery |
| Authors | Carlos Granados, Christian Weiss |
| JLAB number | JLAB-THY-19-2928 |
| LANL number | arXiv:1905.02742 |
| Other number | DOE/OR/23177-4730 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physics Letters B Volume 797 Page(s) 134847 Refereed | |
| Publication Abstract: | We study the nucleon's partonic angular momentum (AM) content at peripheral transverse distances b = O(M_pi^{-1}), where the structure is governed by chiral dynamics. We compute the nucleon form factors of the energy-momentum tensor in chiral effective field theory (ChEFT) and construct the transverse densities of AM at fixed light-front time. In the periphery the spin density is suppressed, and the AM is predominantly orbital. In the first-quantized representation of ChEFT in light-front form, the field-theoretical AM density coincides with the quantum-mechanical orbital AM density of the soft pions in the nucleon's periphery. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1016/j.physletb.2019.134847 |
| Accepted Manuscript: | 1-s2.0-S0370269319305611-main.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |