| DATE: |
2003-07-15 16:00 - 17:00 |
| PLACE: |
room345, 3rd floor, 4-go-kan |
| TITLE: |
Physics seminar |
| CONTACT: |
ichiro.adachi kek.jp |
| SPEAKER: |
Hsiang-nan Li (Academia Sinica, Institute of Physics, Taiwan) |
| LANGUAGE: |
English |
| URL: |
http://seminar.kek.jp/physics/ |
| ABSTRACT: |
After the observation of the new $D^{*}_{sJ}$ mesons, there have been various theoretical speculations for their internal structure. I will briefly review these works. I then propose that the search of the $B\to D^{*}_{sJ}M$ decays, $M=D$, $\pi$ and $K$, can discriminate the different theoretical speculations. The ratio of the branching ratios $B(B\to D^{*}_{sJ}M)/B(B\toD^{(*)}_{s}M)\approx 1$ (0.1) supports the quark-antiquark(non-quark-antiquark) content of the $D^{*}_{sJ}$ mesons. |
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