Gauge invariance and hadron structure
| dc.creator | Chen, Xiang-Song | |
| dc.creator | Wang, Fan | |
| dc.date | 1998-02-18 | |
| dc.date | 1998-09-19 | |
| dc.date.accessioned | 2026-07-07T04:03:29Z | |
| dc.date.available | 2026-07-07T04:03:29Z | |
| dc.description | We prove that the {\em gauge dependent} gluon spin, gluon and quark orbital angular momenta operators have {\em gauge invariant} expectation values on hadron states with {\em definite} momentum and polarization, therefore the conventional decomposition of nucleon spin into contributions from the spin and orbital angular momentum of quark and gluon is {\em gauge independent}. Similar conclusions apply to the {\em gauge dependent} quark momentum and kinetic energy operators, and accordingly nucleon momentum and mass structures. | |
| dc.description | This revised version gives a complete, comprehensive proof of our conclusion, and explains why the specific calculations of Hoodbhoy, Ji and Lu (hep-ph/9808305) do not necessarily contradict our theorem | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9802346 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9802346 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/47679 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Gauge invariance and hadron structure | |
| dc.type | text |