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First Observation of Doubly Charmed Baryons | | Murray Moinester
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12 Dec 2002 | | Journal: | Czech.J.Phys. 53 (2003) B201-B213 | | Subject: | hep-ex | | Affiliation: | SELEX Collaboration | | Abstract: | The SELEX experiment (E781) at Fermilab has observed two statistically compelling high mass states near 3.6 GeV/c^2, decaying to Lambda_c+ K- pi+ and Lambda_c+ K- pi+ pi+. These final states are Cabibbo-allowed decay modes of doubly charmed baryons $Xi_{cc}^+$ and $Xi_{cc}^{++}$, respectively. The masses are in the range expected from theoretical considerations, but the spectroscopy is surprising. SELEX also has weaker preliminary evidence for a state near 3.8 GeV/$
m{c}^2$, a high mass state decaying to Lambda_c+ K- pi+ pi+, possibly an excited $Xi_{cc}^{++}$ (ccu*). Data are presented and discussed. | | Source: | arXiv, hep-ex/0212029 | | Services: | Forum | Review | PDF | Favorites | |
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