Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-06-03
Few Body Syst.47:157-165,2010
Physics
Nuclear Physics
Nuclear Theory
16 pages, 5 figures
Scientific paper
10.1007/s00601-009-0078-8
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.
Efros Victor D.
Leidemann Winfried
Orlandini Giuseppina
Tomusiak Edward L.
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