Schwinger's nonet mass formula revisited
| dc.creator | Burakovsky, L. | |
| dc.creator | Goldman, T. | |
| dc.date | 1997-09-25 | |
| dc.date.accessioned | 2026-07-07T04:02:30Z | |
| dc.date.available | 2026-07-07T04:02:30Z | |
| dc.description | We prove the validity of Schwinger's quartic nonet mass formula for a general nonet structure with the isoscalar singlet mass being shifted from its ``ideal'' value. We apply this formula to the problem of the correct q\bar{q} assignment for the scalar meson nonet. The results favor scalar isoscalar singlet and isoscalar octet masses in the vicinity of 1 GeV and 1.45 GeV, respectively. We explain the failure of Schwinger's formula for the pseudoscalar meson nonet, and suggest a new version of this formula, modified by the inclusion of the pseudoscalar decay constants, which holds with improved accuracy for this nonet. We also rederive the new Gell-Mann-Okubo mass formula 3M^2(n\bar{n},I=1)+2M^2(s\bar{s})=4M^2(s\bar{n})+M^2(n\bar{n},I=0) (n=u,d), suggested in our previous publications. | |
| dc.description | 11 pages, LaTeX | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9709461 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9709461 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/47252 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Schwinger's nonet mass formula revisited | |
| dc.type | text |