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 Ξ0 cπ+. The state has mass difference M\(Ξ0 cπ+)-M(Ξ0 c\) 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*+ c.
Original language | English (US) |
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Pages (from-to) | 810-813 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 77 |
Issue number | 5 |
DOIs | |
State | Published - 1996 |