Search results for "PIO"

showing 10 items of 2238 documents

Electromagnetic interactions of light hadrons in covariant chiral perturbation theory

2017

Las interacciones entre hadrones ligeros y campos de fotones son importantes para el estudio de la estructura de la materia y de la interacción fuerte. Sus propiedades fundamentales son descritas por la cromodinámica quántica (QCD). A energı́as elevadas, esta teorı́a ya ha sido bien comprobada con métodos perturbativos que tienen los quarks y gluones como grados de libertad. Sin embargo, a bajas energı́as, QCD es no-perturbativa y quedan muchos detalles por entender. Estas on precisamente las energı́as necesarias para describir interacciones entre hadrones a distancias superiores a su tamaño. Procesos que involucran interacciones con hadrones han sido extensamente estudiados a lo largo de l…

:FÍSICA::Física atómica y nuclear [UNESCO]UNESCO::FÍSICA::Física atómica y nuclearTeoría quiral de perturbaciones con barionesResonancia deltaPolarizabilidadesHiperonesFactores de forma electromagnéticosFotoproducción de pionesMomento dipolar eléctricoDispersión Compton
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Técnicas de microscopía para la mejora en resolución, obtención de seccionado óptico y medida cuantitativa de fase

2014

La microscopía óptica convencional alcanzó el límite en resolución que predice la difracción por medio del empleo de sofisticados objetivos de microscopio, que consiguen la captura de la información espacial en el espacio de la muestra con un ángulo de captura de prácticamente 70º en aire, esto es, aperturas numéricas (NA) de 0.9 (y mayores si existe un medio de inmersión). Existe la posibilidad de sobrepasar dicho límite o, mejor dicho, encontrar otro límite en resolución siempre que el microscopio que se emplee no pueda entenderse como un microscopio convencional. Por otro lado, los microscopios convencionales carecen de capacidad de seccionado óptico ya que, cuando se tiene una muestra t…

:FÍSICA::Óptica::Optica física [UNESCO]UNESCO::FÍSICA::Óptica::Optica físicaMicroscopíaSeccionado óptico:FÍSICA::Óptica::Microscopios [UNESCO]DifracciónHolografíaUNESCO::FÍSICA::Óptica::Microscopios
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Transformaciones recientes en el área metropolitana de Valencia. Evolución de los usos del suelo en el municipio de Torrent (1956-2011)

2016

:GEOGRAFÍA [UNESCO]0210-086X 364 Cuadernos de geografía 451291 2016 98 5830615 Transformaciones recientes en el área metropolitana de Valencia. Evolución de los usos del suelo en el municipio de Torrent (1956-2011) Alemany MartínezLópez GarcíaMaría José 89 107ManuelUNESCO::GEOGRAFÍA
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Ámbito de relación entre el poder real y los municipios de la Corona de Aragón durante la época foral moderna

2006

La gobernación efectiva de los territorios que integraban la monarquía hispánica descansaba en gran medida en la operatividad de las diversas vías de comunicación establecidas entre el centro y la periferia. En este contexto temático, se tratará de esbozar aquí un breve recorrido por los distintos cauces a través de los cuales se desenvolvían las relaciones entre la administración real y la municipal, en el ámbito de la Corona de Aragón durante la época de los Austrias. Más allá de las diferencias y peculiaridades propias de cada reino, se ha primado un enfoque que, a partir de las similitudes institucionales, trate de dar cuenta de los rasgos que caracterizaban los diversos marcos de relac…

:HISTORIA::Historia moderna [UNESCO]MunicipioHumanidadesMunicipalityOficiales realesUNESCO::HISTORIA::Historia modernaCorona de AragónAustriasCrown of AragonRoyal officialsHistoria
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Los municipios de realengo valencianos tras la guerra de Sucesión

1991

:HISTORIA::Historia moderna [UNESCO]Siglo XVIIIHumanidadesMunicipios de realengoValenciaUNESCO::HISTORIA::Historia modernaHistoria
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Search for a common baryon source in high-multiplicity pp collisions at the LHC

2020

Physics letters / B B811, 135849 (2020). doi:10.1016/j.physletb.2020.135849

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]HadronHadron - hadron reactionHEAVY-ION COLLISIONSHigh multiplicityhiukkasfysiikkanucl-exdecay [resonance]01 natural sciencesHigh Energy Physics - ExperimentExperimentHigh Energy Physics - Experiment (hep-ex)hadron–hadron interactions LHC ALICEBarions; strong interaction; LHCALICEstrong resonance decayIonic Collisionsscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentBarionsPION INTERFEROMETRYhadron-hadron scatteringPhysicsLarge Hadron ColliderMesonsHadron - hadron reactionsmass: transversestrong interactionPhysicsbaryon correlations ; invariant radius ; strong hadron–hadron interactions ; strong resonance decayVDP::Kjerne- og elementærpartikkelfysikk: 431RadiusAU+AUInvariant (physics)lcsh:QC1-999quark gluon plasmaPRIRODNE ZNANOSTI. Fizika.HEAVY-ION COLLISIONS; PION INTERFEROMETRY; SIGMA(0) PRODUCTION; AU+AU; COLLISIONS; FEMTOSCOPY; SYSTEMS; PB:Nuclear and elementary particle physics: 431 [VDP]CERN LHC CollVDP::Nuclear and elementary particle physics: 431Transverse massLHCPBParticle Physics - Experimentbaryon correlationsCOLLISIONSNuclear and High Energy Physicsp p: scatteringHigh Energy Physics; ExperimentcollectiveFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]530114 Physical sciencesNuclear physicsHadron - hadron reactions; LHCbaryon baryon: correlationSYSTEMSresonance: decay0103 physical sciencesfemtoscopyddc:530Nuclear Physics - ExperimentHigh Energy Physics010306 general physicshadron hadron: interactioninteraction [hadron hadron]010308 nuclear & particles physicshep-exhadron-hadron scattering ALICE experiment femtoscopySIGMA(0) PRODUCTIONHigh Energy Physics::PhenomenologyALICE experimentcorrelation [baryon baryon]Kaonsstrong hadron–hadron interactionsNATURAL SCIENCES. Physics.invariant radiusBaryonKaons; Ionic Collisions; Mesonstransverse [mass]Antiproton13000 GeV-cms/nucleonHigh Energy Physics::Experimentlcsh:Physicsexperimental results
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Particle identification in ALICE: a Bayesian approach

2016

We present a Bayesian approach to particle identification (PID) within the ALICE experiment. The aim is to more effectively combine the particle identification capabilities of its various detectors. After a brief explanation of the adopted methodology and formalism, the performance of the Bayesian PID approach for charged pions, kaons and protons in the central barrel of ALICE is studied. PID is performed via measurements of specific energy loss ($\mathrm{d}E/\mathrm{d}x$) and time-of-flight. PID efficiencies and misidentification probabilities are extracted and compared with Monte Carlo simulations using high-purity samples of identified particles in the decay channels ${\rm K}^0_S \righta…

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]Monte Carlo methodGeneral Physics and AstronomyPID controllerPP01 natural sciencesParticle identificationHigh Energy Physics - ExperimentParticle identificationHigh Energy Physics - Experiment (hep-ex)ALICEHadron-Hadron scattering (experiments)Heavy-ion collisionNuclear and High Energy Physics Hadron-Hadron scattering (experiments) Heavy Ion Experiments Heavy-ion collision Quark gluon plasma Particle identification Bayesianscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Experiment (nucl-ex)Detectors and Experimental TechniquesNuclear ExperimentNuclear ExperimentPhysicsefficiency [particle identification]PB COLLISIONSVDP::Kjerne- og elementærpartikkelfysikk: 431Monte Carlo [numerical calculations]PB COLLISIONS PP PERFORMANCE.:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]PRIRODNE ZNANOSTI. Fizika.Time of flight:Nuclear and elementary particle physics: 431 [VDP]VDP::Nuclear and elementary particle physics: 431performancemomentum spectrum [charged particle]Nuclear and High Energy PhysicsParticle physicsMesoneducationBayesian probabilityFOS: Physical sciencesQuark gluon plasma[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]114 Physical sciencesBayesianNuclear physicsPhysics and Astronomy (all)PionHeavy Ion Experiments0103 physical sciencesddc:530010306 general physics010308 nuclear & particles physicsBayesian approach:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]ALICE experimentPERFORMANCEparticle identification ; Bayesian approachNATURAL SCIENCES. Physics.PB COLLISIONS; TEV; PP; PERFORMANCEPhysics - Data Analysis Statistics and ProbabilityQuark–gluon plasmaBayesian [statistics]TEVHigh Energy Physics::Experimentparticle identificationData Analysis Statistics and Probability (physics.data-an)
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Multiplicity dependence of the average transverse momentum in pp, p–Pb, and Pb–Pb collisions at the LHC

2013

The average transverse momentum $\langle p_{\rm T}\rangle$ versus the charged-particle multiplicity $N_{\rm ch}$ was measured in p-Pb collisions at a collision energy per nucleon-nucleon pair $\sqrt{s_{\rm NN}}=5.02$ TeV and in pp collisions at collision energies of $\sqrt{s}=0.9$, 2.76, and 7 TeV in the kinematic range $0.15<p_{\rm T}<10.0$ GeV/$c$ and $|\eta|<0.3$ with the ALICE apparatus at the LHC. These data are compared to results in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV at similar charged-particle multiplicities. In pp and p-Pb collisions, a strong increase of $\langle p_{\rm T}\rangle$ with $N_{\rm ch}$ is observed, which is much stronger than that measured in Pb-Pb colli…

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]Multiplicity dependencePROTON-PROTON COLLISIONSPb-Pbpp01 natural sciencesSpectral lineHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)ALICEMultiplicity dependence; transverse momentum; pp; p–Pb; and Pb–Pb collisionsPions[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]multiplicityNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentALICE experiment; Transverse momentum and particle multiplicity; p-p; p-Pb and Pb-Pb collisionsPhysicsLarge Hadron ColliderPhysicsand Pb–Pb collisionsSpectraCharged particleheavy ion:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]PRIRODNE ZNANOSTI. Fizika.:Nuclear and elementary particle physics: 431 [VDP]CHARGED-PARTICLESRoot-S=0.9Transverse momentum7 TEVParticle Physics - ExperimentParticle physicsNuclear and High Energy Physicsp–PbAstrophysics::High Energy Astrophysical PhenomenaVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431FOS: Physical sciencestransverse momentum[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]p-pNuclear physicsPion0103 physical sciencesNuclear Physics - ExperimentTransverse momentum and particle multiplicity010306 general physicsLONG-RANGEp-PbVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431ta114010308 nuclear & particles physicsPROTON-PROTON COLLISIONS; CHARGED-PARTICLES; 7 TEV; ANGULAR-CORRELATIONS; LONG-RANGEHigh Energy Physics::Phenomenology:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]ALICE experimentKaonsMultiplicity (mathematics)Collisionmultiplicity; transverse momentum; pp; p-Pb; Pb-Pb; heavy ion; ALICENATURAL SCIENCES. Physics.ANGULAR-CORRELATIONSHeavy ionHigh Energy Physics::ExperimentPROTON-PROTON COLLISIONS; CHARGED-PARTICLES; 7 TEV; ANGULAR-CORRELATIONS; LONG-RANGE; ROOT-S=0.9; MODEL; SPECTRA; PIONS; KAONSModelp-Pb and Pb-Pb collisions
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Kaon femtoscopy in Pb-Pb collisions at √sNN=2.76 TeV

2017

We present the results of three-dimensional femtoscopic analyses for charged and neutral kaons recorded by ALICE in Pb-Pb collisions at √ s NN = 2.76 TeV. Femtoscopy is used to measure the space-time characteristics of particle production from the effects of quantum statistics and final-state interactions in two-particle correlations. Kaon femtoscopy is an important supplement to that of pions because it allows one to distinguish between different model scenarios working equally well for pions. In particular, we compare the measured three-dimensional kaon radii with a purely hydrodynamical calculation and a model where the hydrodynamic phase is followed by a hadronic rescattering stage. The…

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]Pb-PbHadronNuclear TheoryPb-Pb collisionshiukkasfysiikkaHEAVY-ION COLLISIONSPPCOLLABORATION7. Clean energy01 natural sciencesParticle identificationHYDRODYNAMICSALICEDEPENDENCENuclear ExperimentPhysicsCOULOMB CORRECTIONSTime projection chamberLarge Hadron ColliderVDP::Kjerne- og elementærpartikkelfysikk: 431PRIRODNE ZNANOSTI. Fizika.:Nuclear and elementary particle physics: 431 [VDP]VDP::Nuclear and elementary particle physics: 431BOSE-EINSTEIN CORRELATIONSTransverse massLHCkaonParticle physicsNuclear and High Energy PhysicskaonsNuclear physicsINTERFEROMETRYPionfemtoscopy0103 physical sciencesNuclear and High Energy Physics; ALICE; LHCPARTICLESparticle physics010306 general physicsScalingNuclear and High Energy Physicta114010308 nuclear & particles physics2.76TeVHEAVY-ION COLLISIONS; BOSE-EINSTEIN CORRELATIONS; COULOMB CORRECTIONS; INTERFEROMETRY; MATTER; PP; COLLABORATION; HYDRODYNAMICS; DEPENDENCE; PARTICLESBose–Einstein correlationsNATURAL SCIENCES. Physics.High Energy Physics::ExperimentMATTERkaon femtoscopy Pb-Pb 2.76TeV
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Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC

2018

We report the measured transverse momentum ($p_{\rm T}$) spectra of primary charged particles from pp, p-Pb and Pb-Pb collisions at a center-of-mass energy $\sqrt{s_{\rm NN}} = 5.02$ TeV in the kinematic range of $0.15<p_{\rm T}<50$ GeV/$c$ and $|\eta|< 0.8$. A significant improvement of systematic uncertainties motivated the reanalysis of data in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV, as well as in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV, which is also presented. Spectra from Pb-Pb collisions are presented in nine centrality intervals and are compared to a reference spectrum from pp collisions scaled by the number of binary nucleon-nucleon collisions. For cent…

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]heavy ion: scatteringHadronmomentum [up]binaryMULTIPLICITY DEPENDENCEPartonheavy ion: scattering ; transverse momentum: momentum spectrum ; quantum chromodynamics: matter ; parton: energy loss ; momentum: high ; up: momentum ; pp: scattering ; nucleus ; charged particle ; suppression ; energy dependence ; impact parameter ; transport theory ; nucleon nucleon ; CERN LHC Coll ; kinematics ; binarymomentum spectrum [transverse momentum]hiukkasfysiikkaKAONnucl-ex01 natural sciences7. Clean energy2760 GeV-cms/nucleonHigh Energy Physics - Experimenttransverse momentum: momentum spectrumHeavy Ion Experiments; Heavy-ion collision; Nuclear and high energy physicsHigh Energy Physics - Experiment (hep-ex)quark gluon plasma Heavy Ion Experiments Heavy-ion collisionnucleon nucleonHeavy-ion collisionhigh [momentum]PIONscattering [p p]transport theory[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex][ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]Nuclear Experiment (nucl-ex)impact parameterNuclear ExperimentNuclear ExperimentQCD matterparticle production and suppressionPhysicsPhysicsHADRONSheavy ion experiments heavy ion collision particle production and suppressionHeavy Ion Experiments; Heavy-ion collisionVDP::Kjerne- og elementærpartikkelfysikk: 431suppressionCENTRALITY DEPENDENCEcharged particleCharged particleMULTIPLICITY DEPENDENCE; CENTRALITY DEPENDENCE; HADRONS; SUPPRESSION; MODEL; KAON; PIONquark gluon plasma:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]:Nuclear and elementary particle physics: 431 [VDP]CERN LHC CollVDP::Nuclear and elementary particle physics: 431kinematicsHeavy Ion ExperimentImpact parameterParticle Physics - ExperimentHeavy Ion Experiments Heavy-ion collision Nuclear and High Energy Physics.Nuclear and High Energy Physicsp p: scatteringnucleon nucleon: scatteringenergy loss [parton]FOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]114 Physical sciencesenergy dependenceNuclear physicsPionHeavy Ion Experiments[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]scattering [heavy ion]0103 physical sciencesmatter [quantum chromodynamics]lcsh:Nuclear and particle physics. Atomic energy. Radioactivityddc:530Nuclear Physics - Experiment5020 GeV-cms/nucleonup: momentum010306 general physicsp nucleus: scatteringquantum chromodynamics: matterta114010308 nuclear & particles physicshep-exnucleus:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]Nuclear and high energy physicsheavy ion collisionMODEL* Automatic Keywords *13. Climate actionmomentum: highQuark–gluon plasmalcsh:QC770-798High Energy Physics::Experimentparton: energy lossEnergy (signal processing)experimental results
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