Search results for "Photon"

showing 10 items of 3171 documents

Sivers asymmetry extracted in SIDIS at the hard scales of the Drell-Yan process at COMPASS

2017

Proton transverse-spin azimuthal asymmetries are extracted from the COMPASS 2010 semi-inclusive hadron measurements in deep inelastic muon-nucleon scattering in those four regions of the photon virtuality $Q^2$, which correspond to the four regions of the di-muon mass $\sqrt{Q^2}$ used in the ongoing analysis of the COMPASS Drell-Yan measurements. This allows for a future direct comparison of the nucleon transverse-momentum-dependent parton distribution functions extracted from these two alternative measurements. Various two-dimensional kinematic dependences are presented for the azimuthal asymmetries induced by the Sivers transverse-momentum-dependent parton distribution function. The inte…

Drellâ YanDrell-Yan processPhotonHadronparton: distribution functionDrell-YanPartontransverse momentum dependence01 natural sciencesCOMPASSSIDISHigh Energy Physics - ExperimentSivers functionSubatomär fysikHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)CompassSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]dimension: 2Nuclear ExperimentSIDIS; Drell–Yan; Spin; Azimuthal asymmetries; Sivers; TMDsmedia_commonPhysicsQuantum chromodynamicsdeep inelastic scattering: semi-inclusive reactionpolarized target: transversephotonDrell–Yan processhep-phlcsh:QC1-999Drell–YanAzimuthal asymmetrieHigh Energy Physics - PhenomenologykinematicsSiverpolarized beam: longitudinalNucleonAzimuthal asymmetriesspin: asymmetryParticle Physics - ExperimentParticle physicsNuclear and High Energy Physicsangular distribution: asymmetrymedia_common.quotation_subjectFOS: Physical sciencesTMDsAsymmetryNuclear physicsSpin[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]Azimuthal asymmetries; Drell–Yan; SIDIS; Sivers; Spin; TMDs; Nuclear and High Energy Physics0103 physical sciencesmuon nucleon: deep inelastic scatteringquantum chromodynamicsSiversmuon nucleon: scattering010306 general physicsParticle Physics - Phenomenologynucleon: transverse momentum010308 nuclear & particles physics160 GeV/chep-exCERN SPSmuon+ p: deep inelastic scattering[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph][ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experimentlcsh:Physicsexperimental results
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Studying the Response of Drivers against Different Collision Warning Systems: A Review

2017

International audience; The number of vehicle accidents is rapidly increasing and causing significant economic losses in many countries. According to the World Health Organization, road accidents will become the fifth major cause of death by the year 2030. To minimize these accidents different types of collision warning systems have been proposed for motor vehicle drivers. These systems can early detect and warn the drivers about the potential danger, up to a certain accuracy. Many researchers study the effectiveness of these systems by using different methods, including Electroencephalography (EEG). From the literature review, it has been observed that, these systems increase the drivers' …

Driving-Simulator[ INFO ] Computer Science [cs]Asia[SPI.OPTI] Engineering Sciences [physics]/Optics / PhotonicSensors[SPI] Engineering Sciences [physics]response of drivers[INFO] Computer Science [cs]EEG response of driversCountriesTime[SPI]Engineering Sciences [physics]Impactvehicle accidentsTactile[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic[ SPI ] Engineering Sciences [physics]Task[INFO]Computer Science [cs][ SPI.OPTI ] Engineering Sciences [physics]/Optics / Photoniccollision warning systemsresponse timeFatalities
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Two-Photon Transitions in CW-ENDOR Spectra of Radicals in Fluid Solution

2002

The radical anion of duroquinone (2,3,5,6-tetramethyl-1,4-benzoquinone) was used as a model compound to describe the low-frequency (LF) ENDOR lines observed in many radical systems. These LF lines ...

Duroquinonechemistry.chemical_compoundFluid solutionchemistryTwo-photon excitation microscopyRadicalAnalytical chemistryPhysical and Theoretical ChemistryPhotochemistrySpectral lineIonThe Journal of Physical Chemistry A
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Random Laser Based on TiO2–Nanomembranes

2012

We demonstrated directional random laser emission from a dye-doped polymer film in the presence of a scattering medium consisting of TiO 2 nanomembranes. Evidence for coexistence of extended and localized modes are presented.

Dye laserRandom laserMaterials sciencebusiness.industryScatteringScanning electron microscopePhysics::OpticsLight scatteringNanomaterialsCondensed Matter::Materials ScienceCondensed Matter::SuperconductivityOptoelectronicsStimulated emissionPhotonicsbusinessConference on Lasers and Electro-Optics 2012
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"Table 3" of "Exclusive production of pion and kaon meson pairs in two photon collisions at LEP."

2003

Measured cross section for pion production as a function of W.

E+ E- --> E+ E- PI+ PI-DSIG/DMElectron productionHigh Energy Physics::LatticeNuclear TheoryIntegrated Cross SectionGAMMA GAMMA --> PI+ PI-Cross SectionSIG0.0Single Differential Cross SectionPhotoproductionE+ E- ScatteringTwo-PhotonExclusiveHigh Energy Physics::ExperimentNuclear Experiment
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"Table 1" of "Exclusive production of pion and kaon meson pairs in two photon collisions at LEP."

2003

Measured angular distribution for pion production.

E+ E- --> E+ E- PI+ PI-Electron productionHigh Energy Physics::LatticeNuclear TheoryGAMMA GAMMA --> PI+ PI-0.0Single Differential Cross SectionPhotoproductionE+ E- ScatteringDSIG/DCOSTHETATwo-PhotonExclusiveHigh Energy Physics::ExperimentNuclear ExperimentAngular Dependence
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EPR RESPONSE OF PHENOLIC SOLID STATE PELLETS FOR DOSIMETRY OF RADIO- THERAPEUTIC PHOTON AND ELECTRON BEAMS

2020

EPR phenolicpellets photon and electron beams
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Watch glasses exposed to 6 MV photons and 10 MeV electrons analysed by means of ESR technique

2011

ESR dosimetry watch glasses electrons photonsSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)
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The use of gadolinium for ESR dosimetry

2010

The application of gadolinium to sensitize Electron Spin Resonance (ESR) dosimeters is reviewed. This nucleus is chosen because it has very good features in interacting with ionizing radiations. In particular, it has a very high capture cross section for thermal neutrons which favors the interactions of these particles within the detector; moreover, the charged secondary particles released after neutron interactions (mainly Auger and internal conversion electrons) are able to release their energy close the gadolinium site and, therefore, inside the sensitive volume of the detector. Consequently, the addition of gadolinium inside ESR dosimeters produces a significant enhancement of thermal n…

ESR dosimetry organic compounds gadolinium photons yhermal neutrons protonsSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)
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The influence of building interactions on seismic and elastic body waves

2019

We outline some recent research advances on the control of elastic waves in thin and thick plates, that have occurred since the large scale experiment [S. Brûlé, Phys. Rev. Lett. 112, 133901 (2014)] that demonstrated significant interaction of surface seismic waves with holes structuring sedimentary soils at the meter scale. We further investigate the seismic wave trajectories of compressional body waves in soils structured with buildings. A significant substitution of soils by inclusions, acting as foundations, raises the question of the effective dynamic properties of these structured soils. Buildings, in the case of perfect elastic conditions for both soil and buildings, are shown to int…

Earthquake engineeringTechnologyScale (ratio)elastic cloakingBody wavesCITYMaterials ScienceCloakingMaterials Science Multidisciplinary01 natural sciencesSeismic wavePhysics::Geophysics03 medical and health sciencesSeismic metamaterial0103 physical sciences[PHYS.MECA.SOLID]Physics [physics]/Mechanics [physics]/Solid mechanics [physics.class-ph]General Materials Science010306 general physics030304 developmental biology0303 health sciencesScience & TechnologyhomogenisationCLOAKINGphysics.class-phCondensed Matter Physicslcsh:QC1-999[PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph][SPI.GCIV]Engineering Sciences [physics]/Civil EngineeringMechanics of Materialssite-city interaction[SPI.OPTI]Engineering Sciences [physics]/Optics / Photoniclcsh:Electrical engineering. Electronics. Nuclear engineeringearthquake engineeringlcsh:TK1-9971Seismologylcsh:Physics
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