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Abstract:
A method is presented to get nuclear effect functions RAv(xt)and RAs(xt)on valence quark distributions and sea quark distributions from the data of 1-A DIS process and nuclear Drell-Yan process.Both the functions may be used to test the theoretical models explaining the nuclear effects.As aexample,we obtain RFev(xt)and RFes(xt)of the iron nucleus by this method.
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