0000000000682688

AUTHOR

F. Diama

showing 2 related works from this author

Strange baryon production in Z hadronic decays

1995

A study of the production of strange octet and decuplet baryons in hadronic decays of the Z recorded by the DELPHI detector at LEP is presented. This includes the first measurement of the ∑± average multiplicity. The total and differential cross sections, the event topology and the baryon-antibaryon correlations are compared with current hadronization models. © 1995 Springer-Verlag.

Particle physicsPhysics and Astronomy (miscellaneous)OctetLUND MONTE-CARLO; JETS; Z(0)LUND MONTE-CARLOElectron–positron annihilationHadronNuclear TheoryElementary particle01 natural sciencesPartícules (Física nuclear)Nuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Quantum field theoryMultiplicity (chemistry)010306 general physicsNuclear ExperimentEngineering (miscellaneous)hadronic decayDELPHIPhysicsbaryon-anti-baryon correlation010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyZ(0)DELPHI; hadronic decay; baryon-anti-baryon correlationLARGE ELECTRON POSITRON COLLIDERHadronizationBaryonPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIJETSPARTICLE PHYSICSFísica nuclearHigh Energy Physics::ExperimentParticle Physics - Experiment
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Classification of the hadronic decays of the Z$^0$ into b and c quark pairs using a neural network

1992

A classifier based on a feed-forward neural network has been used for separating a sample of about 123 500 selected hadronic decays of the Z 0 , collected by DELPHI during 1991, into three classes according to the flavour of the original quark pair: u u +d d +s s (unresolved), c c and b b . The classification has been used to compute the partial widths of the Z 0 into b and c quark pairs. This gave Γ c c /Γ h = 0.151 ± 0.008 ( stat. ) ± 0.041 ( syst. ) , Γ b b /Γ h = 0.232±0.005 ( stat. )±0.017 ( syst. ) .

QuarkNuclear and High Energy PhysicsParticle physicsLUND MONTE-CARLO; HEAVY FLAVOR PRODUCTION; JET FRAGMENTATION; PHYSICS; BOSONHEAVY FLAVOR PRODUCTIONLUND MONTE-CARLOElectron–positron annihilationFlavourHadronMathematicsofComputing_GENERALComputer Science::Digital Libraries01 natural sciencesJET FRAGMENTATIONCharm quarkPHYSICS0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsPhysicsArtificial neural network010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyTheoryofComputation_GENERALBOSONMathMLComputer Science::Mathematical SoftwareHigh Energy Physics::ExperimentFísica nuclearClassifier (UML)Particle Physics - Experiment
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