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Lifetime and production rate of beauty baryons from Z decays.

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Lifetime and production rate of beauty baryons from Z decays.

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DELPHI Collaboration; Castillo Giménez, María Victoria; Ferrer Soria, Antonio; Higón Rodríguez, Emilio; Chrin, J. T. M.; Cortina Gil, Eduardo; Ferrer Soria, Antonio; Fuster Verdú, Juan A.; García García, Carmen; Gómez Cadenas, Juan José; Hernández Rey, Juan José; Hernando Morata, José Ángel; Lacasta Llácer, Carlos; Lozano Bahilo, José Julio; Martínez Vidal, Fernando; Martí García, Salvador; Navas Concha, Sergio; Salt Cairols, José; Valls Ferrer, Juan Antonio

Aquest document és un/a article, creat/da en: 1995

Este documento está disponible también en : 10.1007/BF01620713

The production and decay of beauty baryons (b-baryons) have been studied using 1.7×106 Z hadronic decays collected by the DELPHI detector at LEP. Three different techniques were used to identify theb-baryons. The first method used pairs of a Λ and a lepton to tag theb-baryon decay. The second method associated fully reconstructed ΛC baryons with leptons. The third analysis reconstructed theb-baryon decay points by forming secondary vertices from identified protons and muons of opposite sign. Using these methods the following production rates were measured:

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