Journal article
First Observation of the Doubly Charmed Baryon Xi_cc
Physical review letters, Vol.89(11), 112001
08/12/2002
DOI: 10.1103/PhysRevLett.89.112001
Abstract
Phys.Rev.Lett.89:112001,2002 We observe a signal for the doubly charmed baryon Xi_cc^+ in the charged
decay mode Xi_cc^+ --> Lambda_c^+ K- pi+ in data from SELEX, the charm
hadro-production experiment at Fermilab. We observe an excess of 15.9 events
over an expected background of 6.1 +/- 0.5 events, a statistical significance
of 6.3sigma. The observed mass of this state is (3519 +/- 1) MeV/c^2. The
Gaussian mass width of this state is 3MeV/c^2, consistent with resolution; its
lifetime is less than 33fsec at 90% confidence.
Details
- Title: Subtitle
- First Observation of the Doubly Charmed Baryon Xi_cc
- Creators
- M Mattson - Carnegie Mellon UniversitySELEX Collaboration
- Contributors
- C Newsom (Contributor) - University of Iowa, Physics and AstronomyY Onel (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.89(11), 112001
- DOI
- 10.1103/PhysRevLett.89.112001
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Language
- English
- Date published
- 08/12/2002
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199947602771
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