204 citations · 5.5k across the 274 of their papers we have counts for
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Pion Eletromagnetic Current in the Ligth-Cone Formalism
J. P. B. C. de Melo, H. W. L. Naus, T. Frederico
The electromagnetic form factor of the pion is calculated in a pseudoscalar field theoretical model which constituent quarks. We extract the form factor using the "+" component of…
Ward-Takahashi Identidy on the Ligth-Front
H. W. L. Naus, J. P. B. C de Melo, T. Frederico
The Ward-Takahashi identity, reflecting local gauge invariance, is perturbatively verified for a boson model in light front field theory. A careful integration over the light front…
Universal aspects of Efimov states and light halo nuclei
A. E. A. Amorim, T. Frederico, Lauro Tomio
The parametric region in the plane defined by the ratios of the energies of the subsystems and the three body ground state, in which Efimov states can exist, is determined. We use…
Quark-antiquark correlation in the pion
J. P. B. C de Melo, T. Frederico, Lauro Tomio +1
The electromagnetic tensor for inclusive electron scattering off the pion, (), for momentum transfers such that , () is shown to obey a sum-rule for the…
Application of Renormalization to Potential Scattering
C. F. de Araujo, L. Tomio, S. K. Adhikari +1
A recently proposed renormalization scheme can be used to deal with nonrelativistic potential scattering exhibiting ultraviolet divergence in momentum space. A numerical applicatio…
Lattice Discretization in Quantum Scattering
Sadhan K. Adhikari, T. Frederico, R. M. Marinho
The utility of lattice discretization technique is demonstrated for solving nonrelativistic quantum scattering problems and specially for the treatment of ultraviolet divergences i…