26 citations · 120 across the 16 of their papers we have counts for
9 papers · 1 filter
Neutron Charge Radius: Relativistic Effects and the Foldy Term
W. R. B. de Araújo, T. Frederico, M. Beyer +1
The neutron charge radius is studied within a light-front model with different spin coupling schemes and wave functions. The cancellation of the contributions from the Foldy term a…
Correlations in hot and dense quark matter
S. Mattiello, M. Beyer, T. Frederico +1
We present a relativistic three-body equation to investigate three-quark clusters in hot and dense quark matter. To derive such an equation we use the Dyson equation approach. The…
Violations of Lorentz Covariance in Light Front Quark Models
K. Bodoor, H. J. Weber, T. Frederico +1
Electromagnetic form factors of the nucleon from relativistic quark models are analyzed: results from null-plane projection of the Feynman triangle diagram are compared with a Baka…
Proton Spin Based On Chiral Dynamics
H. J. Weber
Chiral spin fraction models agree with the proton spin data only when the chiral quark-Goldstone boson couplings are pure spinflip. For axial-vector coupling from soft-pion physics…
Feynman versus Bakamjian-Thomas in Light Front Dynamics
W. R. B. de Araujo, M. Beyer, T. Frederico +1
We compare the Bakamjian-Thomas (BT) formulation of relativistic few-body systems with light front field theories that maintain closer contact with Feynman diagrams. We find that F…
Proton Structure Functions from Chiral Dynamics and QCD Constraints
H. J. Weber
The spin fractions and deep inelastic structure functions of the proton are analyzed using chiral field theory involving Goldstone bosons. A detailed comparison with recent chiral…