Search for Pentaquarks in the Hadronic Decays of the Z Boson with the DELPHI Detector at LEP

Recent evidence for pentaquark states has been published, in particular for a strange pentaquark Θ+(1540), for a double-strange state called Ξ(1862)−− and for a charmed state Θc(3100)0. Such states should be produced in e+e− annihilations in Z decays. In this paper a search for pentaquarks using the...

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Detalles Bibliográficos
Autor principal: Gavillet, P
Lenguaje:eng
Publicado: 2006
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1063/1.2176498
http://cds.cern.ch/record/1109381
Descripción
Sumario:Recent evidence for pentaquark states has been published, in particular for a strange pentaquark Θ+(1540), for a double-strange state called Ξ(1862)−− and for a charmed state Θc(3100)0. Such states should be produced in e+e− annihilations in Z decays. In this paper a search for pentaquarks using the DELPHI detector is described. Preliminary upper limits at 95% C.L. are set on the production rates per Z decay of such particles and their charge-conjugate state.

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