Search results for "MASS CORRECTIONS"

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Measurements of the Lineshape of the $Z^{0}$ and Determination of Electroweak Parameters from its Hadronic and Leptonic Decays

1994

Abstract: During the LEP running periods in 1990 and 1991 DELPHI has accumulated approximately 450000 Z0 decays into hadrons and charged leptons. The increased event statistics coupled with improved analysis techniques and improved knowledge of the LEP beam energies permit significantly better measurements of the mass and width of the Z0 resonance. Model independent fits to the cross sections and leptonic forward-backward asymmetries yield the following Z0 parameters: the mass and total width M(Z) = 91.187 +/- 0.009 GeV, GAMMA(Z) = 2.486 +/- 0.012 GeV, the hadronic and leptonic partial widths GAMMA(had) = 1.725 +/- 0.012GeV, GAMMA(l) = 83.01 +/- 0.52 MeV, the invisible width GAMMA(inv) = 51…

Nuclear and High Energy PhysicsParticle physicsElectron–positron annihilationLEP-SLC ENERGIESElementary particle01 natural sciences7. Clean energyPartícules (Física nuclear)PHYSICSNuclear physicsBHABHA SCATTERINGParticle decay0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]RADIATIVE-CORRECTIONSLEP-SLC ENERGIES; RADIATIVE-CORRECTIONS; BHABHA SCATTERING; MASS CORRECTIONS; PHYSICS010306 general physicsDetectors de radiacióDELPHIBhabha scatteringPhysics010308 nuclear & particles physicsPhysicsDELPHI; Z0 resonance; mass corrections; radiative correctionsMathematics::History and OverviewHigh Energy Physics::PhenomenologyElectroweak interactionWeinberg angleMASS CORRECTIONSradiative correctionsZ0 resonanceHiggs bosonHigh Energy Physics::ExperimentParticle Physics - ExperimentLepton
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