Search results for "MULTIPLICITY"

showing 10 items of 296 documents

Testing the companion hypothesis for the origin of the X-ray emission from intermediate-mass main-sequence stars

2006

There is no straightforward explanation for intrinsic X-ray emission from intermediate-mass main-sequence stars. Therefore the observed emission is often interpreted in terms of (hypothesized) late-type magnetically active companion stars. We use Chandra imaging observations to spatially resolve in X-rays a sample of main-sequence B-type stars with recently discovered companions at arcsecond separation. We find that all spatially resolved companions are X-ray emitters, but seven out of eleven intermediate-mass stars are also X-ray sources. If this emission is interpreted in terms of additional sub-arcsecond or spectroscopic companions, this implies a high multiplicity of B-type stars. Firm …

PhysicsSpatially resolvedAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsStarsSpace and Planetary ScienceAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsMultiplicity (chemistry)Main sequenceAstrophysics::Galaxy Astrophysics
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Hund's Rules and Spin Density Waves in Quantum Dots

1997

Spin density functional theory is used to calculate the ground state electronic structures of circular parabolic quantum dots. We find that such dots either have a spin configuration determined by Hund's rule or make a spin-density-wave-like state with zero total spin. The dependence of the spin-density-wave amplitudes on the density of the two-dimensional electron gas is studied.

PhysicsSpin polarizationCondensed matter physicsQuantum spin Hall effectTerm symbolQuantum mechanicsHund's rulesGeneral Physics and AstronomyCondensed Matter::Strongly Correlated ElectronsHund's rule of maximum multiplicityQuantum spin liquidSpin quantum numberDoublet statePhysical Review Letters
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Search for collectivity with azimuthal J/ψ-hadron correlations in high multiplicity p–Pb collisions at sNN=5.02 and 8.16 TeV

2018

A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), State Committee of Science and World Federation of Scientists (WFS), Armenia; Austrian Academy of Sciences and Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria; Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Universidade Federal do Rio Grande do Sul (UFRGS), Financiadora de Estudos e Projetos (Finep) and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil; Ministry of Science & Technology of China (MSTC), National Natural Science Foundation of Chi…

PhysicsSustainable developmentNuclear and High Energy PhysicsParticle physicsHigher education9. Industry and infrastructure010308 nuclear & particles physicsbusiness.industry4. EducationAtomic energyLibrary scienceHigh multiplicity01 natural scienceslanguage.human_languageBildung0103 physical scienceslanguageSlovak010306 general physicsbusinessChinaResearch centerPhysics Letters B
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Forward-central two-particle correlations in p–Pb collisions at sNN=5.02 TeV

2016

Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 < |η| < 4.0) and associated particles in the cen

Physicscongenital hereditary and neonatal diseases and abnormalitiesNuclear and High Energy PhysicsParticle physicsTime projection chamber010308 nuclear & particles physicsAtlas detector01 natural sciencesCharged particleNuclear physicsMuon spectrometerPseudorapidity0103 physical sciencesTransverse momentumRapidityMultiplicity (chemistry)010306 general physicsPhysics Letters B
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Exploring the stability of super heavy elements: First Measurement of the Fission Barrier of $^{254} $No

2013

The gamma-ray multiplicity and total energy emitted by the heavy nucleus 254No have been measured at 2 different beam energies. From these measurements, the initial distributions of spin I and excitation energy E * of 254No were constructed. The distributions display a saturation in excitation energy, which allows a direct determination of the fission barrier. 254No is the heaviest shell-stabilized nucleus with a measured fission barrier. © Owned by the authors, published by EDP Sciences, 2014.

Physicsta114Fissionheavy elementsPhysicsQC1-999Nuclear Theoryfission barrierTransactinide elementstability[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energyNuclear physicsmedicine.anatomical_structuremedicineNuclear structureMultiplicity (chemistry)Total energyAtomic physicsNuclear ExperimentSaturation (magnetic)NucleusExcitationComputingMilieux_MISCELLANEOUS
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"Table 41" of "Multiplicity dependence of K*(892)$^{0}$ and $\phi$(1020) production in pp collisions at $\sqrt{s}$ = 13 TeV"

2020

K$^{*0}$ transverse momentum integrated yield vs multiplicity - V0M multiplicity classes, average of particle and antiparticle

Physics::General PhysicsP P --&gt; Kstar+XKstar13000.0Proton-Proton CollisionsSIGyieldResonanceV0M Multiplicity
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"Table 2" of "Multiplicity dependence of K*(892)$^{0}$ and $\phi$(1020) production in pp collisions at $\sqrt{s}$ = 13 TeV"

2020

K$^{*0}$ transverse momentum spectrum - V0M multiplicity class II, average of particle and antiparticle

Physics::General PhysicsP P --&gt; Kstar+XKstar13000.0YieldsProton-Proton CollisionsComputer Science::Computational GeometrySIGResonanceV0M Multiplicity
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"Table 1" of "Multiplicity dependence of K*(892)$^{0}$ and $\phi$(1020) production in pp collisions at $\sqrt{s}$ = 13 TeV"

2020

K$^{*0}$ transverse momentum spectrum - V0M multiplicity class I, average of particle and antiparticle

Physics::General PhysicsP P --&gt; Kstar+XKstar13000.0YieldsProton-Proton CollisionsHigh Energy Physics::ExperimentNuclear ExperimentSIGResonanceV0M Multiplicity
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"Table 4" of "Multiplicity dependence of K*(892)$^{0}$ and $\phi$(1020) production in pp collisions at $\sqrt{s}$ = 13 TeV"

2020

K$^{*0}$ transverse momentum spectrum - V0M multiplicity class IV+V, average of particle and antiparticle

Physics::General PhysicsP P --&gt; Kstar+XKstar13000.0YieldsProton-Proton CollisionsSIGResonancePhysics::GeophysicsV0M Multiplicity
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"Table 6" of "Multiplicity dependence of K*(892)$^{0}$ and $\phi$(1020) production in pp collisions at $\sqrt{s}$ = 13 TeV"

2020

K$^{*0}$ transverse momentum spectrum - V0M multiplicity class VII, average of particle and antiparticle

Physics::General PhysicsP P --&gt; Kstar+XKstar13000.0YieldsProton-Proton CollisionsSIGResonanceV0M Multiplicity
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