0000000000936720

AUTHOR

L. Zanini

showing 3 related works from this author

Measurement of the n-TOF beam profile with a micromegas detector

2004

A Micromegas detector was used in the neutron Time-Of-Flight (n_TOF) facility at CERN to evaluate the spatial distribution of the neutron beam as a function of its kinetic energy. This was achieved over a large range of neutron energies by using two complementary processes: at low energy by capture of a neutron via the 6Li(n,[alpha])t reaction, and at high energy by elastic scattering of neutrons on gas nuclei (argon+isobutane or helium+isobutane). Data are compared to Monte Carlo simulations and an analytic function fitting the beam profile has been calculated with a sufficient precision to use in neutron capture experiments at the n_TOF facility. http://www.sciencedirect.com/science/artic…

Elastic scatteringPhysicsNuclear and High Energy PhysicsArgonPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaBeam profileNuclear Theorychemistry.chemical_elementMicroMegas detectorNUCLEAR PHYSICSNeutron radiationNuclear physicsNeutron capturechemistryNEUTRON BEAMSNeutron cross sectionMICROMEGAS DETECTORNeutron detectionNeutron beam profilerNeutronNuclear ExperimentInstrumentationMicromegas
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New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the HIBEAM/NNBAR experiment at the European Spalla…

2021

Abstract The violation of baryon number, B , is an essential ingredient for the preferential creation of matter over antimatter needed to account for the observed baryon asymmetry in the Universe. However, such a process has yet to be experimentally observed. The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source to search for baryon number violation. The program will include high-sensitivity searches for processes that violate baryon number by one or two units: free neutron–antineutron oscillation ( n → n ̄ ) via mixing, neutron–antineutron oscillation via regeneration from a sterile neutron state ( n → [ n ′ , n ̄ ′ ] → n ̄ ), and neutron disappearan…

baryon number violation; feebly interacting particles; European Spallation Source; baryogenesisPhysics beyond the Standard ModelNuclear TheoryEXPERIMENTAL LIMITfeebly interacting particlesbaryogenesisAntineutron01 natural sciencesSubatomär fysikANTIPROTON ANNIHILATIONn: oscillationSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear ExperimentsterilePhysicsMIRROR MATTERnew physicsanti-nddc:Antimatterbaryon: asymmetryproposed experimentDAMA ANNUAL MODULATIONNuclear and High Energy PhysicsParticle physicsAccelerator Physics and Instrumentation114 Physical sciencesBaryon asymmetrynuclear physics0103 physical sciencesDARK-MATTERmixingNeutronSensitivity (control systems)[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]TRANSITION OPERATORS010306 general physicsbaryon number: violationactivity report010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyAcceleratorfysik och instrumenteringMAJORANA NEUTRINOSsensitivitybaryon number violationBaryogenesisregenerationEuropean Spallation SourceUNIFIED PICTUREB-L SYMMETRYBaryon numberBARYON-NUMBER NONCONSERVATION
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Lead–gold eutectic: An alternative liquid target material candidate for high power spallation neutron sources

2011

Abstract One of the main technical concerns of Megawatt-class spallation neutron sources is the removal of the heat deposited in the target station. A way to overcome it is to use targets consisting of flowing liquid metals, but the already tested materials – mercury and lead–bismuth eutectic (LBE) – are not unproblematic. We show here that another eutectic alloy containing lead and gold (LGE) could be a suitable alternative. Besides a chemical toxicity lower than mercury, this low melting-point alloy has the advantage of being solid at RT. Moreover, it combines a neutron production similar to mercury and LBE with smaller amounts of alpha-emitting nuclides, relieving safety and environmenta…

Nuclear and High Energy PhysicsMaterials science010308 nuclear & particles physicsMetallurgyAlloyRadiochemistrychemistry.chemical_elementengineering.material7. Clean energy01 natural sciencesMercury (element)Nuclear Energy and Engineeringchemistry0103 physical sciencesengineeringNeutron sourceGeneral Materials ScienceSpallationNeutronNuclideDecay heat010306 general physicsEutectic systemJournal of Nuclear Materials
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