0000000000246793

AUTHOR

J. Coenen

showing 3 related works from this author

Search for the rare decayBs0→ϕμ+μ−with the D0 detector

2006

We present a search for the flavor-changing neutral current decay B-s(0)->phi mu(+)mu(-) using about 0.45 fb(-1) of data collected in p (p) over bar collisions at root s=1.96 TeV with the D0 detector at the Fermilab Tevatron Collider. We find an upper limit on the branching ratio of this decay normalized to B-s(0)-> J/psi phi of B(B-s(0)->phi mu(+)mu(-))/B(B-s(0)-> J/psi phi) J/psi phi, the limit corresponds to B(B-s(0)->phi mu(+)mu(-))< 4.1x10(-6) at the 95% C.L., the most stringent upper bound to date.

PhysicsNuclear and High Energy PhysicsParticle physicsNeutral current010308 nuclear & particles physicsBranching fractionDetectorTevatron01 natural sciencesUpper and lower boundslaw.inventionlaw0103 physical sciencesHigh Energy Physics::ExperimentFermilab010306 general physicsColliderBar (unit)Physical Review D
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Search for excited muons inpp¯collisions ats=1.96  TeV

2006

We present the results of a search for the production of an excited state of the muon, mu(*), in proton antiproton collisions at root s =1.96 TeV. The data have been collected with the D0 experiment at the Fermilab Tevatron Collider and correspond to an integrated luminosity of approximately 380 pb(-1). We search for mu(*) in the process p (p) over bar ->mu(*)mu, with the mu(*) subsequently decaying to a muon plus photon. No excess above the standard model expectation is observed in data. Interpreting our data in the context of a model that describes mu(*) production by four-fermion contact interactions and mu(*) decay via electroweak processes, we set a 95% confidence level production cros…

PhysicsNuclear and High Energy PhysicsParticle physicsMuonPhysics::Instrumentation and Detectors010308 nuclear & particles physicsTevatronContext (language use)D0 experiment7. Clean energy01 natural sciencesNuclear physicsParticle decayAntiproton0103 physical sciencesPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentFermilab010306 general physicsLeptonPhysical Review D
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Overview of the JET results with the ITER-like wall

2013

Following the completion in May 2011 of the shutdown for the installation of the beryllium wall and the tungsten divertor, the first set of JET campaigns have addressed the investigation of the retention properties and the development of operational scenarios with the new plasma-facing materials. The large reduction in the carbon content (more than a factor ten) led to a much lower Zeff (1.2-1.4) during L- and H-mode plasmas, and radiation during the burn-through phase of the plasma initiation with the consequence that breakdown failures are almost absent. Gas balance experiments have shown that the fuel retention rate with the new wall is substantially reduced with respect to the C wall. T…

Nuclear and High Energy PhysicsMaterials scienceREGIMENuclear engineeringchemistry.chemical_element-Condensed Matter PhysicEffective radiated powerTungstenNuclear and High Energy Physics; Condensed Matter PhysicsPedestalPLASMA-FACING COMPONENTSTOKAMAK PLASMASJet (fluid)TUNGSTENDivertorperfomancePlasmaPERFORMANCECondensed Matter PhysicsSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)chemistryBeta (plasma physics)DIVERTORBerylliumAtomic physics
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