Threshold 3He and 3H Transverse Electron Scattering Response Functions
Abstract
The threshold transverse response functions R_T(q,omega) for 3He and 3H are calculated using the AV18 nucleon-nucleon potential, the UrbanaIX three-body force, and the Coulomb potential. Final states are completely taken into account via the Lorentz integral transform technique. Consistent two-body pi- and rho-meson exchange currents as deduced using the Arenh\"ovel-Schwamb technique are included. The convergence of the method is shown and a comparison of the corresponding MEC contribution is made to that of a consistent MEC for the meson theoretical r-space BonnA potential. The response R_T is calculated in the threshold region at q=174, 324, and 487 MeV/c and compared with available data. The strong MEC contributions in the threshold region are nicely confirmed by the data at q=324 and 487 MeV/c although some differences between theoretical and experimental results remain. A comparison is also made with other calculations, where the same theoretical input is used. The agreement is generally rather good, but leaves also some space for further improvement.
Cite
@article{arxiv.0906.0663,
title = {Threshold 3He and 3H Transverse Electron Scattering Response Functions},
author = {Winfried Leidemann and Victor D. Efros and Giuseppina Orlandini and Edward L. Tomusiak},
journal= {arXiv preprint arXiv:0906.0663},
year = {2010}
}
Comments
16 pages, 5 figures