0000000001203236

AUTHOR

G Sartorelli

showing 3 related works from this author

Lowering the radioactivity of the photomultiplier tubes for the XENON1T dark matter experiment

2015

The low-background, VUV-sensitive 3-inch diameter photomultiplier tube R11410 has been developed by Hamamatsu for dark matter direct detection experiments using liquid xenon as the target material. We present the results from the joint effort between the XENON collaboration and the Hamamatsu company to produce a highly radio-pure photosensor (version R11410-21) for the XENON1T dark matter experiment. After introducing the photosensor and its components, we show the methods and results of the radioactive contamination measurements of the individual materials employed in the photomultiplier production. We then discuss the adopted strategies to reduce the radioactivity of the various PMT versi…

PhotomultiplierPhysics - Instrumentation and DetectorsPhysics and Astronomy (miscellaneous)530 PhysicsDark matterPhotodetectorchemistry.chemical_elementFOS: Physical sciencesGermanium01 natural sciencesAtomicRecoilOpticsXenonParticle and Plasma Physics0103 physical sciencesNuclear010306 general physicsEngineering (miscellaneous)physics.ins-detInstrumentation and Methods for Astrophysics (astro-ph.IM)PhysicsQuantum Physics010308 nuclear & particles physicsbusiness.industryDetectorMolecularInstrumentation and Detectors (physics.ins-det)Nuclear & Particles Physics3. Good healthchemistrybusinessAstrophysics - Instrumentation and Methods for Astrophysicsastro-ph.IM
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A search for quarks in the CERN SPS neutrino beam

1978

Quarks and leptons are the only pointlike particles known so far. However, a search for a proton-breaking mechanism in high-energy neutrino-nucleon interactions had never been performed. We present here the results of the first experiment in this field.

QuarkPhysicsParticle physicsLarge Hadron ColliderField (physics)Settore FIS/01 - Fisica SperimentaleNuclear TheoryHigh Energy Physics::PhenomenologyElementary particleNeutrino beamParticle detectorGluonNuclear physicsFree quark searchElementary Particles SPS CERNHigh Energy Physics::ExperimentNuclear ExperimentParticle Physics - ExperimentLeptonIl Nuovo Cimento A
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Evidence of the same multiparticle production mechanism in p−p collisions as in e+e− annihilation

1980

The split-field magnet spectrometer at the CERN intersecting storage rings was used to measure, in p-p collisions at square root s=62 GeV, the inclusive momentum distribution of the charged particles produced in the same hemisphere as the leading proton (x>0.4). A new scaling variable was introduced in order to take into account baryon-number conservation effects in p-p interactions. It is shown that distributions in this variable are in good agreement with the momentum distribution of the hadrons produced in e/sup +/e/sup -/ annihilation. The results suggest that the multiparticle production mechanism in p-p collisions is the same as in e/sup +/e/sup -/ provided that the effects of baryon-…

PhysicsNuclear and High Energy PhysicsParticle physicsAnnihilationLarge Hadron ColliderProtonIntersecting Storage RingsElectron–positron annihilationSettore FIS/01 - Fisica SperimentaleHadronproton-proton inclusive interactions Particle Physics ISR CERNCharged particleNuclear physicsMomentumNuclear ExperimentParticle Physics - ExperimentPhysics Letters B
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