$ψ(3770)$ and $B$ meson exclusive decay $B \to ψ(3770) K$ in QCD factorization
| dc.creator | Gao, Ying-Jia | |
| dc.creator | Meng, Ce | |
| dc.creator | Chao, Kuang-Ta | |
| dc.date | 2006-06-04 | |
| dc.date | 2006-09-07 | |
| dc.date.accessioned | 2026-07-07T10:41:42Z | |
| dc.date.available | 2026-07-07T10:41:42Z | |
| dc.description | Belle has observed surprisingly copious production of $ψ(3770)$ in $B$ meson decay $B\to ψ(3770)K$, of which the rate is comparable to that of $B\to ψ(3686)K$. We study this puzzling process in the QCD factorization approach with the effect of S-D mixing considered. We find that the soft scattering effects in the spectator interactions play an essential role. With a proper parametrization for the higher twist soft end-point singularities associated with kaon, and with the S-D mixing angle $θ=-12^{\circ}$, the calculated decay rates can be close to the data. Implications of these soft spectator effects to other charmonium production in $B$ exclusive decays are also emphasized. | |
| dc.description | journal version | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0606044 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0606044 | |
| dc.identifier | Eur.Phys.J.A28:361-367,2006 | |
| dc.identifier | doi:10.1140/epja/i2006-10059-y | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181703 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | $ψ(3770)$ and $B$ meson exclusive decay $B \to ψ(3770) K$ in QCD factorization | |
| dc.type | text |