Observation of an Excited Charmed Baryon Decaying into Ξ0cπ+
Abstract
Using data recorded by the CLEO II detector at the Cornell Electron Storage Ring, we report the first observation of an excited charmed baryon decaying into Ξ0cπ+. The state has mass difference M\(Ξ0cπ+\)-M\(Ξ0c\) of 174.3+/-0.5+/-1.0 MeV/c2, and a width of <3.1 MeV/c2 (90% confidence level limit). We identify the new state as the Ξ*+c, the isospin partner of the recently discovered Ξ*0c.
- Publication:
-
Physical Review Letters
- Pub Date:
- July 1996
- DOI:
- 10.1103/PhysRevLett.77.810
- Bibcode:
- 1996PhRvL..77..810G