A more careful estimate of the charm content of eta'
| dc.creator | Ahmady, M. R. | |
| dc.creator | Kou, E. | |
| dc.date | 1999-03-12 | |
| dc.date | 2000-03-09 | |
| dc.date.accessioned | 2026-07-07T04:06:36Z | |
| dc.date.available | 2026-07-07T04:06:36Z | |
| dc.description | We estimate the quantity |f_eta'^(c)| which is associated with the charm content of eta' meson from the experimentally known ratio R=B(psi ->eta' gamma )/B(psi ->eta_c gamma). It is shown that due to the off-shellness of the c\bar c component of eta', which has been overlooked so far, f_eta'^(c) is further suppressed. Assuming that psi ->eta' gamma decay is dominated by psi ->eta_c transition, we obtain |f_eta'^(c)| = 2.4 MeV which could imply that the (b -> c\bar cs) mechanism does not play a major role in the B -> K eta' decay mode. | |
| dc.description | 8 pages, latex, 2 postscript figures included | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9903335 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9903335 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/48836 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | A more careful estimate of the charm content of eta' | |
| dc.type | text |