$\nu (\bar{\nu })$-${}^{208}$Pb deep inelastic scattering

Abstract

Nuclear-medium effects in the weak structure functions $F_2(x,Q^2)$ and $F_3(x,Q^2)$ in the charged current neutrino and antineutrino induced deep inelastic reactions in ${}^{208}$Pb have been studied. The calculations have been performed in a theoretical model using relativistic nuclear spectral functions which incorporate Fermi motion, binding and nucleon correlations. We also consider the pion and rho meson cloud contributions calculated from a microscopic model for meson-nucleus self-energies. Using these structure functions, the results for the differential cross section have been obtained and compared with the CERN Hybrid Oscillation Research apparatUS (CHORUS) data. The results for the ratios $\frac{2F_i^{Pb}}{208F_i^D}$, $\frac{4F_i^{Pb}}{208F_i^{He}}$, $\frac{12F_i^{Pb}}{208F_i^C}$, $\frac{16F_i^{Pb}}{208F_i^O}$, and $\frac{56F_i^{Pb}}{208F_i^{Fe}}$ (i=2,3) have also been obtained and a few have been compared with some of the phenomenological fits.

Comments: 19Pages, 12 Figs