Contribution of higher meson resonances to the electromagnetic $π$-meson mass difference
| dc.creator | Andrianov, V. A. | |
| dc.creator | Afonin, S. S. | |
| dc.date | 2001-09-04 | |
| dc.date | 2001-12-28 | |
| dc.date.accessioned | 2026-07-07T11:31:09Z | |
| dc.date.available | 2026-07-07T11:31:09Z | |
| dc.description | Modifications of the DGMLY relation for calculation of electromagnetic $π$-meson mass difference based on the Chiral Symmetry Restoration phenomenon at high energies as well as the Operator Product Expansion of quark densities for vector ($ρ$) and axial-vector ($a_1$) meson fields difference are proposed. In the calculations higher meson resonances in vector and axial-vector channels are taken into account. It is shown that the inclusion of the first $ρ$ and $a_1$ radial excitations improves the results for electromagnetic $π$-meson mass difference as compared with the previous ones. Estimations on the electromagnetic $ρ$ and $a_1$-meson decay constants and the constant $L_{10}$ of effective chiral Lagrangian are obtained from the generalized Weinberg sum rules. | |
| dc.description | Latex2e, 10 pages, submitted to Yad. Phys | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0109026 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0109026 | |
| dc.identifier | Phys.Atom.Nucl.65:1862-1867,2002; Yad.Fiz.65:1913-1917,2002 | |
| dc.identifier | doi:10.1134/1.1515849 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197176 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Contribution of higher meson resonances to the electromagnetic $π$-meson mass difference | |
| dc.type | text |