2001/06/20 by J. Carlson, J. Jourdan, R. Schiavilla +1
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Nuclear physics research studies #nucl-th
paper · pdf · doi:10.1103/physrevc.65.024002
published as Phys.Rev.C65:024002,2002 · 40 pages, 11 figures, submitted to Phys. Rev. C
arxiv created 2001/06/20 · openalex publication_date 2002/01/25 · arxiv updated 2010/05/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The 3He and 4He longitudinal and transverse response functions are determined from an analysis of the world data on quasielastic inclusive electron scattering. The corresponding Euclidean response functions are derived and compared to those calculated with Green's function Monte Carlo methods, using realistic interactions and currents. Large contributions associated with two-body currents are found, particularly in the 4He transverse response, in agreement with data. The contributions of the two-body charge and current operators in the 3He, 4He, and 6Li response functions are also studied via sum-rule techniques. A semiquantitative explanation for the observed systematics in the excess of transverse quasielastic strength, as function of mass number and momentum transfer, is provided. Finally, a number of model studies with simplified interactions, currents, and wave functions are carried out to elucidate the role played, in the full calculation, by tensor interactions and correlations.