High-energy electron scattering from ^6Li and ^1^2C

We have measured the spectra of electrons scattered from ^6Li and ^1^2C for invariant masses of the hadronic system W 1.5 GeV and four momentum transfers in the range 5 fm^-^2 q^2 12 fm^-^2. We compared the shape of the spectra with different nuclear models. The Fermigas model of the nucleus cann...
Ausführliche Beschreibung

We have measured the spectra of electrons scattered from ^6Li and ^1^2C for invariant masses of the hadronic system W 1.5 GeV and four momentum transfers in the range 5 fm^-^2 q^2 12 fm^-^2. We compared the shape of the spectra with different nuclear models. The Fermigas model of the nucleus cannot reproduce the data. A shell model with short-range correlations fits the data with a correlation parameter q"c ~ 250 MeV/c. From the absolute cross section the effective number of nucleons was derived for quasi-elastic scattering and found to be compatible with A, whereas the effective number of nucleons derived for the excitation of the Δ(1236) resonance was found to be 0.6 A. Ausführliche Beschreibung