0000000000341997

AUTHOR

Pieter Maris

showing 3 related works from this author

Electron Anomalous Magnetic Moment in Basis Light-Front Quantization Approach

2011

We apply the Basis Light-Front Quantization (BLFQ) approach to the Hamiltonian field theory of Quantum Electrodynamics (QED) in free space. We solve for the mass eigenstates corresponding to an electron interacting with a single photon in light-front gauge. Based on the resulting non-perturbative ground state light-front amplitude we evaluate the electron anomalous magnetic moment. The numerical results from extrapolating to the infinite basis limit reproduce the perturbative Schwinger result with relative deviation less than 0.6%. We report significant improvements over previous works including the development of analytic methods for evaluating the vertex matrix elements of QED.

PhysicsParticle physicsPhotonNuclear TheoryAnomalous magnetic dipole moment010308 nuclear & particles physicsHamiltonian field theoryFOS: Physical sciencesElectron01 natural sciencesAtomic and Molecular Physics and OpticsNuclear Theory (nucl-th)High Energy Physics - PhenomenologyQuantization (physics)High Energy Physics - Phenomenology (hep-ph)Light front quantizationQuantum electrodynamics0103 physical sciences010306 general physicsGround stateEigenvalues and eigenvectors
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Ultrarelativistic quark-nucleus scattering in a light-front Hamiltonian approach

2020

We investigate the scattering of a quark on a heavy nucleus at high energies using the time-dependent basis light-front quantization (tBLFQ) formalism, which is the first application of the tBLFQ formalism in QCD. We present the real-time evolution of the quark wave function in a strong classical color field of the relativistic nucleus, described as the color glass condensate. The quark and the nucleus color field are simulated in the QCD SU(3) color space. We calculate the total and the differential cross sections, and the quark distribution in coordinate and color spaces using the tBLFQ approach. We recover the eikonal cross sections in the eikonal limit. We find that the differential cro…

QuarkParticle physicsNuclear TheoryHigh Energy Physics::LatticeNuclear TheoryFOS: Physical scienceshiukkasfysiikka01 natural sciencesColor-glass condensateNuclear Theory (nucl-th)Quantization (physics)symbols.namesakeHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencessironta010306 general physicsWave functionPhysicsQuantum chromodynamics010308 nuclear & particles physicsEikonal equationkvarkitHigh Energy Physics::PhenomenologyDeep inelastic scatteringHigh Energy Physics - PhenomenologysymbolskvanttikenttäteoriaHamiltonian (quantum mechanics)ydinfysiikkaPhysical Review D
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Computational nuclear quantum many-body problem: The UNEDF project

2013

The UNEDF project was a large-scale collaborative effort that applied high-performance computing to the nuclear quantum many-body problem. The primary focus of the project was on constructing, validating, and applying an optimized nuclear energy density functional, which entailed a wide range of pioneering developments in microscopic nuclear structure and reactions, algorithms, high-performance computing, and uncertainty quantification. UNEDF demonstrated that close associations among nuclear physicists, mathematicians, and computer scientists can lead to novel physics outcomes built on algorithmic innovations and computational developments. This review showcases a wide range of UNEDF scien…

Energy density functionalNuclear Theoryta114Computer scienceFOS: Physical sciencesGeneral Physics and AstronomyComputerApplications_COMPUTERSINOTHERSYSTEMSSupercomputerNuclear Theory (nucl-th)Many-body problemRange (mathematics)Hardware and ArchitectureSystems engineeringStatistical physicsUncertainty quantificationQuantumNuclear theoryComputer Physics Communications
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