Abstract:
On the basis of some general assumptions on the deep inelastic structure functions, such as scaling and chiral symmetry we determine the values of {(HV3)2+(HA3)2}+η{(HV0)2+(HA0)2} and HV3 HA3+ηHV0 HA0 where HV3,0 and HA3,0 are the four coupling constants characterizing the hadronic neutral current and η is the ratio of the isoscalar to isovector structure functions. General expressions are given for the kinematical averages 〈v〉 and 〈Q2〉 for the neutral-current reactions in terms of the coupling constants. This analysis does not depend on the validity of the quark-parton model. © 1974 the Indian Academy of Sciences.