Dispersion Relations and Sum Rules for the pi ->gamma gamma* and gamma* ->gamma pi form factor
| dc.creator | Truong, Tran N. | |
| dc.date | 2001-02-24 | |
| dc.date.accessioned | 2026-07-07T03:43:59Z | |
| dc.date.available | 2026-07-07T03:43:59Z | |
| dc.description | Sum rules for the off-shell isovector form factor pi -> gamma gamma* are given in terms of the pion form factor and the gamma pi ->pi pi experimental data. Similarly the corresponding sum rules for the isoscalar form factor are given in terms of the experimental photon-3 pi form factor and the gamma pi -> 3 pi amplitude. For some set of parameters, e.g. rho -> pi gamma width = 90 KeV, the pi -> gamma gamma rate and the slope parameter of the decay pi -> gamma e plus e minus are in good agreement with the experimental data. | |
| dc.description | 13 pages | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0102300 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0102300 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40433 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Dispersion Relations and Sum Rules for the pi ->gamma gamma* and gamma* ->gamma pi form factor | |
| dc.type | text |