Search for exotic mesons produced by baryon exchange in the reaction pi /sup +/p to Lambda +x/sup ++/ at 12 GeV/c

A search for exotic mesons has been carried out at the CERN Omega spectrometer. The baryon-exchange reaction pi /sup +/p to Lambda +x /sup ++/ was studied at 12 GeV/c incident beam momentum. No evidence was found for the existence of doubly-charged strange mesons. The upper limit (95% confidence lev...

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Detalles Bibliográficos
Autores principales: Brundiers, H, Brun, F, Carles, G, Cribier, Michel, Fluri, L, Hartung, R, Hubbard, John R, Laurens, G, Moscoso, L, Müller, A, Runge, K, Schaile, O, Weber, C, Zylberajch, S
Lenguaje:eng
Publicado: 1976
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(76)90368-3
http://cds.cern.ch/record/873982
Descripción
Sumario:A search for exotic mesons has been carried out at the CERN Omega spectrometer. The baryon-exchange reaction pi /sup +/p to Lambda +x /sup ++/ was studied at 12 GeV/c incident beam momentum. No evidence was found for the existence of doubly-charged strange mesons. The upper limit (95% confidence level) for this reaction is 60 nb for exotic mesons with squared masses from 1 to 7 (GeV/c/sup 2/)/sup 2/ and 150 nb for 7 to 13 (GeV/c/sup 2/)/sup 2/. These limits are of the same order of magnitude as the exotic cross-sections expected from two-component duality arguments. (10 refs).

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