| 日時: |
2003-06-17 16:00 - 17:00 |
| 場所: |
4号館3階345号室 |
| 会議名: |
Understanding the New $D_{sJ}$ Resonances |
| 連絡先: |
ichiro.adachi kek.jp |
| 講演者: |
Bruce Yabsley (Virginia Polytechnic Inst. and State Univ.) |
| 講演言語: |
英語 |
| アブストラクト: |
The new states decaying to $D_s^{*+} \pi^0$, seen by BaBar and then CLEO, have taken the particle physics community by surprise. Additional P-wave states of the $c\bar{s}$ system, a $D_{s0}^*$ and $D_{s1}$, have been expected for a long time, but the new resonances (called, for now, ``$D_{sJ}$\') do not have the expected masses. This has led to speculation that these states may be exotic mesons.
In this talk I will review the results from BaBar, CLEO, and other experiments, and discuss the issues in interpretation of the new $D_{sJ}$ resonances. I will try to tease out what is surprising (and what is not surprising) about the masses, widths, and decay modes of these states. Particular emphasis will be given to the new results from the Belle collaboration, which may be decisive on
some of the important questions. |
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