SPIN STRUCTURE FUNCTIONS FOR 3-NUCLEON SYSTEMS - NEUTRONS AND PROTONS

The relativistic quark model of nucleon and the quark-exchange formali sm is used to calculate the spin structure functions (SSF) of He-3, H- 3, neutrons and protons. We consider the quarks to be exchanged at mos t between two nucleons. The up and down quarks treated separately and a well behaved polarized distribution is found by considering energy-m omentum conservation properly. The SSF of He-3 and H-3 and convolution approximation are used to find the SSF of protons and neutrons and th e validity of the Bjorken sum rule was tested. Finally it is shown tha t the result of our calculation agrees qualitatively well with the ava ilable experimental data, i.e., E142, E143, SMC, and recent E154, expe riments.