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6 papers · 2 filters
The interplay of soft and hard contributions in the electromagnetic pion form factor
W. Schweiger
We consider various relativistic models for the valence Fock-state wave function of the pion. These models are obtained from simple instant-form wave functions by applying a Melosh…
On helicity and spin on the light cone
A. Krassnigg, Hans-Christian Pauli
Starting from a one-body front-form equation with Lepage-Brodsky spinors we show, with a fair amount of new technology, how an integral equation in standard momentum space with Bjo…
Two-Quark Correlations in the Hard Electromagnetic Nucleon Form Factors
M. Schwaerz, W. Schweiger
The, so called, "hard-scattering approach" represents a suitable framework for the perturbative treatment of exclusive hadronic processes at large energies and (transverse) momentu…
Covariant electroweak nucleon form factors in a chiral constituent quark model
S. Boffi, L. Ya. Glozman, W. Klink +3
Results for the proton and neutron electric and magnetic form factors as well asthe nucleon axial and induced pseudoscalar form factors are presented for the chiral constituent qua…
Electroweak properties of baryons in a covariant chiral quark model
S. Boffi, M. Radici, L. Glozman +3
The proton and neutron electromagnetic form factors and the nucleon axial form factor have been calculated in the Goldstone-boson exchange constituent-quark model within the point-…
Chiral multiplets versus parity doublets in highly excited baryons
T. D. Cohen, L. Ya. Glozman
It has recently been suggested that the parity doublet structure seen in the spectrum of highly excited baryons may be due to effective chiral restoration for these states. We argu…