| 日時: |
2003-11-11 16:00 - 17:00 |
| 場所: |
4号館345号室 |
| 会議名: |
物理セミナー「Two new, strange, charmed mesons in BaBar」（英語） |
| 連絡先: |
物理セミナー係（足立一郎） |
| 講演者: |
Antimo Palano (Univ. of Bari) |
| 講演言語: |
英語 |
| URL: |
http://seminar.kek.jp/physics/ |
| アブストラクト: |
The BaBar experiment has discovered a new narrow state, Ds(2317), near
2.32 GeV in the inclusive Ds pi0 invariant mass distribution
from e+e- annihilation data at energies near 10.6 GeV.
The same experiment has also shown evidence for structure in the 2.46
GeV region in the Ds pi0 gamma mass spectrum.
These discoveries have triggered several experiments in a search for new
states coupled to the Ds meson which confirmed the existence of Ds(2317)
together with Ds(2458) both in inclusive e+ e- annihilation and in B
decays.
These two new states are difficult to explain in terms of potential
models. |
|
