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Energy-momentum tensor of the nucleon on the light front: Abel tomography case

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arxiv 2105.10279 v1 pith:JQWRWGO5 submitted 2021-05-21 hep-ph hep-exhep-lat

classification hep-phhep-exhep-lat
keywords frontlightnucleonabeltwo-dimensionaldistributionsthree-dimensionalbreit
verification ladder T0 review T1 audit T2 compute T3 formal
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We investigate the two-dimensional energy-momentum-tensor (EMT) distributions of the nucleon on the light front, using the Abel transforms of the three-dimensional EMT ones. We explicitly show that the main features of all EMT distributions are kept intact in the course of the Abel transform. We also examine the equivalence between the global and local conditions for the nucleon stability in the three-dimensional Breit frame and in the two-dimensional transverse plane on the light front. We also discuss the two-dimensional force fields inside a nucleon on the light front.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Proton Gravitational Structure and Mass Decomposition on the Light Front

    hep-ph 2025-06 conditional novelty 6.0 of 10

    Using a light-front Hamiltonian with three-quark and three-quark-plus-gluon Fock sectors, the authors extract quark and gluon gravitational form factors and find a proton mass decomposition of 31.5% quark energy, 34.7...

  2. Quadrupole forces between quark/gluon subsystems inside higher-spin particles

    hep-ph 2025-08 conditional novelty 5.0 of 10

    For spin-1 and spin-3/2 hadrons, the quark/gluon subsystem force acquires quadrupole and tangential components, expressed through new multipole form factors C̄_n(t).

  3. Gravitational form factors of the nucleon in the Skyrme model based on scale-invariant chiral perturbation theory

    hep-ph 2025-07 conditional novelty 5.0 of 10

    A Skyrme model with a dilaton field attributes the proton's negative internal pressure and confining force to the gluonic scale anomaly, and reproduces the lattice QCD D(t) form factor.

  4. On the Impossibility of Obtaining Time-Independent, Three-Dimensional, Spherically-Symmetric Densities of Confined Systems of Relativistically Moving Constituents

    hep-ph 2025-07 conditional novelty 5.0 of 10

    Time-independent three-dimensional spherical densities cannot be defined for relativistic confined systems; only transverse two-dimensional light-front densities are consistent with quantum mechanics and Poincare invariance.

  5. Proton Structure from a Soft-Wall Holographic QCD Model: Mass Spectrum, Form Factors, and Mechanical Properties

    hep-ph 2025-12 conditional novelty 4.0 of 10

    A soft-wall holographic model reproduces proton spectroscopy, form factors, radii, and J/ψ photoproduction, though the gravitational form factor D is an input-dependent ansatz.

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