Point-Form Analysis of Elastic Deuteron Form Factors

Details Point-Form Analysis of Elastic Deuteron Form Factors Point-Form Analysis of Elastic Deuteron Form Factors

2000-05-17

arxiv.org/abs/nucl-th/0005050v2

Phys.Rev.C63:034002,2001

Physics

Nuclear Physics

Nuclear Theory

RevTex, 31 pages, 1 table, 13 figures

Scientific paper

10.1103/PhysRevC.63.034002

Point-form relativistic quantum mechanics is applied to elastic electron-deuteron scattering. The deuteron is modeled using relativistic interactions that are scattering-equivalent to the nonrelativistic Argonne $v_{18}$ and Reid '93 interactions. A point-form spectator approximation (PFSA) is introduced to define a conserved covariant current in terms of single-nucleon form factors. The PFSA is shown to provide an accurate description of data up to momentum transfers of 0.5 ${\rm GeV}^2$, but falls below the data at higher momentum transfers. Results are sensitive to the nucleon form factor parameterization chosen, particularly to the neutron electric form factor.

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