0000000001138765

AUTHOR

D Knoblauch

showing 2 related works from this author

Investigation of the splitting of quark and gluon jets

1998

The splitting processes in identified quark and gluon jets are investigated using longitudinal and transverse observables. The jets are selected from symmetric three-jet events measured in Z decays L with the {\sc Delphi} detector in 1991-1994. Gluon jets are identified using heavy quark anti-tagging. Scaling violations in identified gluon jets are observed for the first time. The scale energy dependence of the gluon fragmentation function is found to be about two times larger than for the corresponding quark jets, consistent with the QCD expectation $C_A/C_F$. The primary splitting of gluons and quarks into subjets agrees with fragmentation models and, for specific regions of the jet resol…

QuarkParticle physicsPhysics and Astronomy (miscellaneous)Electron–positron annihilationAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::LatticeNuclear Theory7. Clean energy01 natural sciencesPartícules (Física nuclear)Nuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsHADRONIZATIONEngineering (miscellaneous)ScalingQuantum chromodynamicsPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyObservableQCDPhoton structure functionHadronizationGluonMODELAVERAGE MULTIPLICITIES; QCD; HADRONIZATION; FRAGMENTATION; MODELFísica nuclearHigh Energy Physics::ExperimentFRAGMENTATIONAVERAGE MULTIPLICITIESParticle Physics - Experiment
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Measurement of the charged particle multiplicity of weakly decaying B hadrons

1998

From the Z decays recorded in 1994 and 1995 by the DELPHI detector at LEP, the charged particle multiplicity of weakly decaying B hadrons was measured to be: 4.97 +/- 0.03 +/- 0.06 excluding the K-o and Lambda decay products. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

Nuclear and High Energy PhysicsParticle physicsElectron–positron annihilationHadronMICROVERTEX DETECTOR; DELPHI DETECTOR; PHYSICS01 natural sciencesPartícules (Física nuclear)Nuclear physicsPHYSICS0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Multiplicity (chemistry)010306 general physicsDELPHIPhysics010308 nuclear & particles physicsDetectorMICROVERTEX DETECTORDELPHI DETECTORLARGE ELECTRON POSITRON COLLIDERCharged particlePARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIPARTICLE PHYSICSHigh Energy Physics::ExperimentFísica nuclearParticle Physics - Experiment
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