Hadronic vacuum polarization effects in alpha_{em}(M_Z)
| dc.creator | Jegerlehner, F. | |
| dc.date | 2003-08-11 | |
| dc.date.accessioned | 2026-07-07T03:50:22Z | |
| dc.date.available | 2026-07-07T03:50:22Z | |
| dc.description | Recent evaluations of the hadronic vacuum polarization contributions to the effective fine-structure constant alpha_{em}(M_Z) are summarized and commented. A new update based on corrected CMD-2 data is presented. My new estimates are Delta alpha_{had}^{(5)}(M_Z) = 0.027773 +/- 0.000354 (e^+e^- - data based) and Delta alpha_{had}^{(5)}(M_Z) = 0.027664 +/- 0.000173 (via the Adler-function and extended use of pQCD). Prospects of further possible progress is discussed. | |
| dc.description | 16 pages, Latex, 3 figures, 2 tables | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0308117 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0308117 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42748 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Hadronic vacuum polarization effects in alpha_{em}(M_Z) | |
| dc.type | text |