Diffractive production of the charmed baryon LAMBDA$_{c}^{+}$ at the CERN ISR

In a sample of diffractive events of high multiplicity a sharp five standard deviation signal is observed at M=2255 MeV/c/sup 2/ in the K /sup -/p pi /sup +/ mass distribution and, although with less statistical strength, at the same mass in the lambda /sup 0/ pi /sup + / pi /sup +/ pi /sup -/ chann...

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Detalles Bibliográficos
Autores principales: Giboni, K L, DiBitonto, Daryl, Barone, M, Block, Martin M, Böhm, A, Campanini, R, Ceradini, F, Eickmeyer, J, Hanna, D S, Irion, J, Kernan, A, Ludwig, H, Müller, F, Naroska, Beate, Navach, F, Nussbaum, M, O'Connor, J, Rubbia, Carlo, Schinzel, D, Seebrunner, H J, Staude, A, Tirler, R, VanDalen, G J, Voss, Rüdiger, Wojslaw, R
Lenguaje:eng
Publicado: 1979
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(79)91291-7
http://cds.cern.ch/record/133299
Descripción
Sumario:In a sample of diffractive events of high multiplicity a sharp five standard deviation signal is observed at M=2255 MeV/c/sup 2/ in the K /sup -/p pi /sup +/ mass distribution and, although with less statistical strength, at the same mass in the lambda /sup 0/ pi /sup + / pi /sup +/ pi /sup -/ channel. These signals are identified as being due to the decay of the charmed baryon Lambda /sub c//sup +/ which is produced with a cross section times branching ratio sigma /sub C/B in the range 0.7-1.8 mu b for the K/sup -/ pi /sup +/p decay and 0.3-0.7 mu b for the Lambda /sup 0/ pi /sup +/ pi /sup +/ pi /sup -/ system. (8 refs).

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