Search for the tensor glueball candidate $\xi$ (2230) in an antiproton-proton formation experiment

Results of a search for the tensor (2/sup ++/) glueball candidate xi (2230) are presented. A scan of the formation of xi (2230) in the mass region square root s=2222.7-2239.7 MeV/c/sup 2/ was made using the Crystal Barrel Detector at LEAR (CERN). pi /sup 0/ pi /sup 0/ and eta eta final states were i...

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Detalles Bibliográficos
Autor principal: Röthel, W
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1063/1.1345266
http://cds.cern.ch/record/516257
Descripción
Sumario:Results of a search for the tensor (2/sup ++/) glueball candidate xi (2230) are presented. A scan of the formation of xi (2230) in the mass region square root s=2222.7-2239.7 MeV/c/sup 2/ was made using the Crystal Barrel Detector at LEAR (CERN). pi /sup 0/ pi /sup 0/ and eta eta final states were investigated and no indication for the formation of xi was found. Breit-Wigner fits, assuming a resonance width of 10-20 MeV/c/sup 2/ yield the 95% confidence level upper limits B(pp to xi ) B( xi to pi /sup 0/ pi /sup 0/)<6.10/sup -5/ and B(pp to xi ) B( xi to eta eta )<4.10/sup -5/. (7 refs).

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