Inclusive electron scattering from nuclei in the quasielastic region at large momentum transfer

Abstract

Experiment E02-019, performed in Hall C at the Thomas Jefferson National Accelerator Facility (TJNAF), was a measurement of inclusive electron cross sections for several nuclei (${}^2$H,${}^3$He, ${}^4$He, ${}^9$Be,${}^{12}$C, ${}^{63}$Cu, and ${}^{197}$Au) in the quasielastic region at high momentum transfer. In the region of low energy transfer, the cross sections were analyzed in terms of the reduced response, F(y), by examining its $y$-scaling behavior. The data were also examined in terms of the nuclear structure function $\nu W_2^A$ and its behavior in $x$ and the Nachtmann variable $\xi$. The data show approximate scaling of $\nu W_2^A$ in $\xi$ for all targets at all kinematics, unlike scaling in $x$, which is confined to the DIS regime. However, $y$-scaling observations are limited to the kinematic region dominated by the quasielastic response ({$y<$0}), where some scaling violations arising from FSIs are observed.

PhD Thesis