The puzzle of excessive non-$D\bar D$ component of the inclusive $ψ(3770)$ decay and the long-distant contribution
| dc.creator | Liu, Xiang | |
| dc.creator | Zhang, Bo | |
| dc.creator | Li, Xue-Qian | |
| dc.date | 2009-02-03 | |
| dc.date | 2009-04-16 | |
| dc.date.accessioned | 2026-07-07T13:11:44Z | |
| dc.date.available | 2026-07-07T13:11:44Z | |
| dc.description | In this letter we suggest that the obvious discrepancy between theoretical prediction on the $\mathrm{non}-D\bar D$ decays of $ψ(3770)$ and data is to be alleviated by taking final state interaction (FSI) into account. By assuming that $ψ(3770)$ overwhelmingly dissociates into $D\bar D$, then the final state interaction induces a secondary process, we calculate the branching ratios of $ψ(3770)\to D\bar D\to J/ψη, ρπ, ωη, K^*K$. Our results show that the branching ratio of $ψ(3770)\to \mathrm{non}-D\bar{D}$ can reach up to $\mathcal{B}_{\mathrm{non}-D\bar{D}}^{FSI}=(0.2\sim1.1)%$ while typical parameters $I=0.4$ GeV$^{-2}$ and $α=0.8\sim 1.3$ are adopted. This indicates that the FSI is obviously non-negligible. | |
| dc.description | 6 pages, 4 figures, 1 tables. More references and discussions added, typos corrected. Accepted by Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/0902.0480 | |
| dc.identifier | http://arxiv.org/abs/0902.0480 | |
| dc.identifier | Phys.Lett.B675:441-445,2009 | |
| dc.identifier | doi:10.1016/j.physletb.2009.04.047 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/229377 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | The puzzle of excessive non-$D\bar D$ component of the inclusive $ψ(3770)$ decay and the long-distant contribution | |
| dc.type | text |