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Quark-gluon separation in three-jet events

1981; American Physical Society; Volume: 23; Issue: 9 Linguagem: Inglês

10.1103/physrevd.23.1944

1538-4500

Hans Peter Nilles, K. H. Streng,

High-Energy Particle Collisions Research

We discuss the necessity of a separation of quarks and gluons in $q\overline{q}g$ three-jet events in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation in order to obtain quantitative tests of quantum chromodynamics. The possibility of such a separation is investigated with special emphasis on the case that one or two of the jets are identified as quark jets by a semileptonic decay of a $c$ or $b$ quark. It is shown in detail how gluon energy spectra and gluon-jet properties can be deduced from these measurements.