Search results for "gluon fragmentation"

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Energy dependence of the differences between the quark and gluon jet fragmentation

1996

Three jet events arising from decays of the Z beson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b quark jets. Unbiased quark jets came from events with two jets plus one photon. Quark and gluon jet properties in different energy ranges were compared for the first time within the same detector. Quark and gluon jets of nearly the same energy in symmetric three jet event topologies were also compared. Using three independent methods, the average value of the ratio of the mean charged multiplicities of gluon and quark jets is [ r ] = 1.241 +/- 0.015 (stat.) +/- 0.025 (syst.). Gluon jets are broa…

QuarkParticle physicsE+E ANNIHILATIONPhysics and Astronomy (miscellaneous)Astrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::LatticeHadron7. Clean energy01 natural sciencesBottom quarkPartícules (Física nuclear)Nuclear physicsCOLLIDER0103 physical sciencesCHARGED-PARTICLE MULTIPLICITY[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]3-JET EVENTSDISTRIBUTIONSALPHA-SNuclear Experiment010306 general physicsDELPHIQuantum chromodynamicsPhysics010308 nuclear & particles physicsALGORITHMSHigh Energy Physics::PhenomenologyPerturbative QCDLEPgluon fragmentationLARGE ELECTRON POSITRON COLLIDERQCDPhoton structure functionCHARGED-PARTICLE MULTIPLICITY; E+E ANNIHILATION; ROOT-S; 3-JET EVENTS; ALPHA-S; LEP; DISTRIBUTIONS; ALGORITHMS; COLLIDER; QCDGluonThree-jet eventROOT-SLEP; DELPHI; 3-jet events; gluon fragmentationPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIPARTICLE PHYSICSFísica nuclearHigh Energy Physics::ExperimentParticle Physics - Experiment
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