S-D mixing and $ψ(3770)$ production in $e^+e^-$ annihilation and B decay and its radiative transitions
| dc.creator | Liu, Kui-Yong | |
| dc.creator | Chao, Kuang-Ta | |
| dc.date | 2004-05-13 | |
| dc.date | 2004-08-16 | |
| dc.date.accessioned | 2026-07-07T10:29:09Z | |
| dc.date.available | 2026-07-07T10:29:09Z | |
| dc.description | The large decay rate observed by Belle for $B^+\toψ(3770)K^+$, which is comparable to $B^+\toψ(3686)K^+$, might indicate either an unexpectedly large S-D mixing angle $|θ|\approx 40^o$ or the leading role of the color-octet mechanism in D-wave charmonium production in B decay. By calculating the production rate of $ψ(3770)$ in the continuum $e^+e^-$ annihilation at $\sqrt{s}=10.6$ GeV with these two possible approaches (i.e. the large S-D mixing and the color-octet mechanism), we show that the measurement for this process at Belle and BaBar may provide a clear cut clarification for the two approaches. In addition, the radiative E1 transition ratio $Γ(ψ(3770)\to γχ_{c2})/Γ(ψ(3770)\to γχ_{c1})$ may dramatically change from $\sim$ 0.04 (for $θ\approx 0^o$) to $\sim$ 200 (for $θ\approx -40^o$) due to the large S-D interference effect, thus the E1 transition measurement of $ψ(3770)$ at BES and CLEO-c will also be very useful in clarifying this issue. | |
| dc.description | final version to appear in Phys.Rev.D, discussion on uncertainties associated with the color-octet matrix elements is added, 16 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0405126 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0405126 | |
| dc.identifier | Phys.Rev.D70:094001,2004 | |
| dc.identifier | doi:10.1103/PhysRevD.70.094001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177700 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | S-D mixing and $ψ(3770)$ production in $e^+e^-$ annihilation and B decay and its radiative transitions | |
| dc.type | text |