Frame dependence of 3He transverse (e, eu0001) response functions at intermediate momentum transfers

摘要

The transverse electron scattering response function of 3He was recently studied by us in the quasielastic peaknregion for momentum transfers q between 500 and 700 MeV/c. Those results, obtained using the active nucleonnBreit (ANB) frame, are here supplemented by calculations in the laboratory, Breit, and ANB frames using thentwo-fragment model discussed in our earlier work on the frame dependence of the longitudinal response functionnRL(q,ω). We find relatively frame-independent results and good agreement with experiment especially for thenlower momentum transfers. This agreement occurs when we neglect an ω-dependent piece of the one-bodyncurrent relativistic correction. Inclusion of this term leads, however, to a rather pronounced frame dependence atnq = 700 MeV/c. A discussion of this term is given here. This report also includes a correction to our previousnANB results for RT (q,ω).