A simple qualitative description of EMC ratios \mu^A for 0.2 <~ x <~ 1.5   and some sample calculations
  We study EMC ratios on the basis of a relation between Structure Functions (SF) for a nucleus and for a nucleon, which is governed by a SF f^{PN,A}(x,Q^2) of an unphysical nucleus, composed of point-nucleons. We demonstrate that the characteristic features of EMC ratios \mu^A are determined by the above f^{PN,A} and the SF of free nucleons. We account for the positions of the points x_{1,2} in the interval 0.2 <~ x <~ 0.9, where \mu^A(x,Q^2)=1 and also for the minimum x_m in that interval. We similarly describe the oscillations in \mu^A for Q^2 <~ (3.5-4.0) GeV^2 in the Quasi-Elastic peak region 0.95 <~ x <~ 1.05 and for its subsequent continuous increase up to x\approx 1.4. Finally we compute \mu^A over the entire range above for A=^4He, C, Fe and Au and several Q^2 values. The results are in reasonable agreement with both directly measured and indirectly extracted data. 
A.S. Rinat (1), M.F. Taragin (1), and M. Viviani (2). ((1) Weizmann   Institute of Science, Department of Particle Physics, ...