Recoil effects on nucleon electromagnetic form factors

Details Recoil effects on nucleon electromagnetic form factors Recoil effects on nucleon electromagnetic form factors

1997-03-25

arxiv.org/abs/nucl-th/9703053v1

Nucl.Phys. A609 (1996) 488-500

Physics

Nuclear Physics

Nuclear Theory

LateX file (with ESPART.STY) + 4 postscript figures

Scientific paper

10.1016/S0375-9474(96)00317-X

The electromagnetic form factors are computed using eigenstates of linear momentum for the nucleon. The latter is described in the framework of the chiral color-dielectric model, projecting the hedgehog ansatz on eigenstates of angular momentum and isospin. Form factors are well reproduced, with the exception of the magnetic one for the proton, up to $q^2 \simeq 0.5$ GeV$^2$. The effect of the removal of the spurious center-of-mass contributions shows up mainly in the electric form factor of the proton. A noticeable improvement is obtained with respect to the calculation without linear momentum projection.

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