Radiochemical Investigation of Unsaturation in Polystyrene Prepared by Cationic Mechanism

Unsaturation in 'cationic' polystyrene is of interest for two main reasons: because of its importance in providing some evidence about the polymerisation process, particularly the termination mechanism, and to help clarify the mechanism of degradation - particularly by providing information as to the presence of main chain unsaturation which might be associated with "weak links"

Electromagnetic and Weak Nuclear Structure Functions F1,2(x,Q2)F_{1,2}(x,Q^2) in the Intermediate Region of Q2Q^2

We have studied nuclear structure functions $F_{1A}(x,Q^2)$ and $F_{2A}(x,Q^2)$ for electromagnetic and weak processes in the region of $1 GeV^2 < Q^2 <8 GeV^2$. The nuclear medium effects arising due to Fermi motion, binding energy, nucleon correlations, mesonic contributions and shadowing effects are taken into account using a many body field theoretical approach. The calculations are performed in a local density approximation using a relativistic nucleon spectral function. The results are compared with the available experimental data. Implications of nuclear medium effects on the validity of Callan-Gross relation are also discussed.Comment: Published in Journal of the Physical Society of Japan (NuInt-2015