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Diffractive production of the charmed baryon Λ+c at the CERN ISR |
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| Authors: | KL Giboni D Dibitonto M Barone MM Block A B?hm R Campanini F Ceradini J Eickmeyer D Hanna J Irion A Kernan H Ludwig F Muller B Naroska F Navach M Nussbaum J O&#x;Connor C Rubbia R Wojslaw |
| Institution: | 1. III. Physikalisches Institut der Technischen Hochschule, Aachen, Germany;2. CERN, Geneva, Switzerland;3. Lyman Laboratory, Department of Physics, Harvard University, Cambridge, MA, USA;4. Sektion Physik der Universität, Munich, Germany;5. Northwestern University, Evanston, IL, USA;6. University of California, Riverside, CA, USA |
| Abstract: | In a sample of diffractive events of high multiplicity a sharp five standard deviation signal is observed at M = 2255 MeV/c2 in the K?pπ+ mass distribution and, although with less statistical strength, at the same mass in the Λ0π+π+π? channel. These signals are identified as being due to the decay of the charmed baryon Λ+c which is produced with a cross section times branching ratio σcB in the range 0.7?1.8 μb for the K?π+p decay and 0.3?0.7 μb for the Λ-π+π+ π? system. |
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