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DELPHI Collaboration; Alemany Fernández, Reyes; Cabrera Urbán, Susana; Castillo Giménez, María Victoria; Cortina Gil, Eduardo; Ferrer Soria, Antonio; Fuster Verdú, Juan A.; García García, Carmen; Hernández Rey, Juan José; Higón Rodríguez, Emilio; Lacasta Llácer, Carlos; Martínez Vidal, Fernando; Navas Concha, Sergio; Salt Cairols, José | |||
Aquest document és un/a article, creat/da en: 1996 | |||
Este documento está disponible también en : 10.1016/S0370-2693(96)01450-5 |
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An upper limit for BR(Z0 → 3g) is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle multiplicity distributions. From the sample of threefold symmetric three-jet events collected by the DELPHI experiment at LEP during 1991¿1994, the 95% confidence level upper limit is deduced to be: BR(Z0 → 3g) ≤ 1.6 × 10−2 for the JADE and BR(Z0 → 3g) ≤ 1.5 × 10−2 for the DURHAM jet-finder. | |||
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