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Analysis calculates deuteron form factors in np scattering, suggesting improved models for predictions.
The deuteron form factors are calculated using two model wave functions obtained from the 2007 covariant spectator theory high-precision fits to np scattering data. Included in the calculation is a new class of isoscalar np interaction currents which are automatically generated by the nuclear force model used in these fits. If the nuclear model WJC2 is used, a precision fit (χ2/datum 1) to the Sick global analysis (GA) of all ed elastic scattering data can be obtained by adjusting the unknown off-shell nucleon form factors F3(Q2) (discussed before) and F4(Q2) (introduced in this paper) and predicting the high-Q2 behavior of the neutron charge form factor GEn(Q2) well beyond the region where it has been measured directly. Relativistic corrections, isoscalar interaction currents, and off-shell effects are defined and discussed, and their sizes are displayed. A rationale for extending ed elastic scattering measurements to higher Q2 is presented.
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Franz Gross (2020) studied this question.
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