Flow equations in the light-front QCD: mass gap and confinement
| dc.creator | Gubankova, E. | |
| dc.date | 2000-03-30 | |
| dc.date.accessioned | 2026-07-07T03:41:03Z | |
| dc.date.available | 2026-07-07T03:41:03Z | |
| dc.description | The light-front QCD is studied using the method of flow equations. Solving the light-front gluon gap equation, the effective gluon mass is generated dynamically. The effective interaction between static quark and antiquark, generated through elimination of the quark-gluon minimal coupling by flow equations, has the Coulomb, $1/q^2$, and confining, $1/q^4$, singular behavior. Elimination of the quark-gluon coupling at small gluon momenta is governed by the cutoff dependent, dynamical gluon mass, which makes this elimination possible and provides such an enhancement at $q\sim 0$. The cutoff, which regulates small light-front $x$ divergences, sets up a scale for the dynamical gluon mass and the string tension in the $q\bar{q}$-potential. The mechanism of confimenemet in the light-front frame is suggested, based on the singular nature of the light-front gauge along the light-front $x$-axis. | |
| dc.description | 8 pages, uses sprocl.sty. To appear in the proceedings of the CSSM Workshop on Light-Cone QCD and Nonperturbative Hadron Physics, Adelaide, SA, Dec. 13--21,1999 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0003288 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0003288 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/39492 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Flow equations in the light-front QCD: mass gap and confinement | |
| dc.type | text |