Decay $ϕ(1020)\to γf_0(980)$: analysis in the non-relativistic quark model approach
| dc.creator | Anisovich, A. V. | |
| dc.creator | Anisovich, V. V. | |
| dc.creator | Markov, V. N. | |
| dc.creator | Nikonov, V. A. | |
| dc.creator | Sarantsev, A. V. | |
| dc.date | 2004-03-11 | |
| dc.date | 2004-12-30 | |
| dc.date.accessioned | 2026-07-07T10:49:03Z | |
| dc.date.available | 2026-07-07T10:49:03Z | |
| dc.description | We demonstrate the possibility of a good description of the processes $ϕ(1020)\to γππ$ and $ϕ(1020)\to γf_0(980)$ within the framework of non-relativistic quark model assuming $f_0(980)$ to be dominantly quark--antiquark system. Different mechanisms of the radiative decay, that is, the emission of photon by the constituent quark (additive quark model) and charge-exchange current, are considered. We also discuss the status of the threshold theorem applied to the studied reactions, namely, the behaviour of the decay amplitude at $M_{ππ} \to m_ϕ$ and $m_{f_0}\to m_ϕ$. In conclusion the arguments favouring the $q\bar q$ origin of $f_0(980)$ are listed. | |
| dc.description | 24 pages, some typos corrected | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0403123 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0403123 | |
| dc.identifier | Phys.Atom.Nucl.68:1554-1572,2005; Yad.Fiz.68:1614-1632,2005 | |
| dc.identifier | doi:10.1134/1.2053339 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184089 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Decay $ϕ(1020)\to γf_0(980)$: analysis in the non-relativistic quark model approach | |
| dc.type | text |