Nuclear y and x scaling

Details Nuclear y and x scaling Nuclear y and x scaling

1998-12-31

arxiv.org/abs/nucl-th/9812078v1

Physics

Nuclear Physics

Nuclear Theory

13 pages, LaTeX, 9 ps figures included with psfig, lamuphys and bibnorm style files needed

Scientific paper

The basic approximations leading to non-relativistic and relativistic nuclear y and x scaling are recalled. The general and systematic features of y-scaling structure functions are pointed out, and a recently proposed novel approach to y-scaling, based on a global scaling variable, y_G, which incorporates the effect of the momentum dependence of the nucleon removal energy, and therefore allows the establishment of a direct link between scaling functions and momentum distributions, is illustrated and applied to the analysis of a large body of data. The phenomenon of nuclear x-scaling, based on a proper analysis of nuclear quasi-elastic data in terms of the Bjorken scaling variable x_B, is shown to occur at high values of the four-momentum transfer Q^2; the usefulness of nuclear x scaling is pointed out.

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