A Resummable beta-Function for Massless QED
| dc.creator | Rosten, Oliver J. | |
| dc.date | 2008-01-16 | |
| dc.date | 2008-06-30 | |
| dc.date.accessioned | 2026-07-07T11:39:54Z | |
| dc.date.available | 2026-07-07T11:39:54Z | |
| dc.description | Within the set of schemes defined by generalized, manifestly gauge invariant exact renormalization groups for QED, it is argued that the beta-function in the four dimensional massless theory cannot possess any nonperturbative power corrections. Consequently, the perturbative expression for the beta-function must be resummable. This argument cannot be extended to flows of the other couplings or to the anomalous dimension of the fermions and so perturbation theory does not define a unique trajectory in the critical surface of the Gaussian fixed point. Thus, resummability of the beta-function is not inconsistent with the expectation that a non-trivial fixed point does not exist. | |
| dc.description | 7 pages, 2 figs; v2 published version, some very minor rewording; v3 typo corrected | |
| dc.identifier | https://arxiv.org/abs/0801.2462 | |
| dc.identifier | http://arxiv.org/abs/0801.2462 | |
| dc.identifier | Phys.Lett.B662:237-243,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2008.03.006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/200090 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | A Resummable beta-Function for Massless QED | |
| dc.type | text |