0000000000379740

AUTHOR

J.-c. Marin

showing 3 related works from this author

Evidence for B$^{0}_{s}$ meson production in Z$^0$ decays

1992

Seven unambiguous events out of a sample of 270 000 Z0 decays, contain in tile same jet a D(s) meson and a muon at large transverse momentum relative to the et axis. These events are direct evidence for B(s)0 meson production in hadronic Z0 decays. The production rate of these events, relative to all hadronic Z0 decays is ( 18 +/- 8) x 10(-5) this number including the relevant branching fractions of the B(s)0 and D(s). The value of the B(s)0 meson lifetime relative to the average B meson lifetime is measured to be 0.8 +/- 0.4.

Nuclear and High Energy PhysicsParticle physicsMeson productionMesonLUND MONTE-CARLOElectron–positron annihilationNuclear TheoryHadron01 natural sciencesCOLLIDERNuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]B mesonNuclear Experiment010306 general physicsPhysicsMuonLUND MONTE-CARLO; Z0 DECAYS; COLLIDER010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyZ0 DECAYSTransverse momentumFísica nuclearHigh Energy Physics::ExperimentParticle Physics - ExperimentProduction rate
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A Measurement of the Bbbar Forward-backward Asymmetry Using the Semileptonic Decay Into Muons

1992

PhysicsQuarkSemileptonic decayNuclear and High Energy PhysicsParticle physicsMuonmedia_common.quotation_subjectHadronElectroweak interactionHigh Energy Physics::PhenomenologyWeinberg angleBottom quarkAsymmetryNuclear physicsPhysique des particules élémentairesComputingMethodologies_DOCUMENTANDTEXTPROCESSING[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::ExperimentFísica nucleardigital documentAstrophysics::Earth and Planetary AstrophysicsNuclear Experimentmedia_common
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Search for the sgoldstino at √s = 189 to 202 GeV.

2000

A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production Sgamma followed by S decay into two gluons or into two photons was studied at 189 - 202 GeV LEP centre-of-mass energies. No evidence for the S production was found and limits on the S mass corresponding to different theory parameters are given.

PhysicsNuclear and High Energy PhysicsParticle physicsPhoton010308 nuclear & particles physicsHigh Energy Physics::Phenomenology01 natural sciencesPartícules (Física nuclear)GluonSgoldstino0103 physical sciencesHigh Energy Physics::ExperimentFísica nuclearGoldstino010306 general physics
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