부산대학교 도서관

Longitudinal and transverse responses from inclusive electron scattering are computed within an independent-particle relativistic mean-field model to describe the initial and final states, and one- and two-body current operators leading to the one-particle one-hole response. We find that the two-body contributions have no effect on the longitudinal response but they increase the transverse response by up to 30%, depending on the energy and momentum transfer, improving very significantly the agreement with experimental data. Our calculation is fully relativistic and considers within the full quantum mechanical description both the initial and final nucleon states involved in the process, incorporating realistic dynamics. We also show that it is essential to go beyond the plane-wave approach, as incorporating the distortion of the nucleons while making the initial and final states orthogonal, allows to reproduce both the shape and magnitude of the responses. The good agreement with the electron scattering experimental data supports the use of this approach to describe neutrino-induced scattering reaction.
Comment: 6 pages, 4 figures