In this paper, we will apply the derived equation of interaction for two quasiparticles in the other paper of ours (J. D. Fan and Y. M. Malozovsky, Int. J. Mod. Phys. B, Vol. 27 No. 15, 2013)1 to the model of a Fermi liquid with a weak contact attractive interaction between 3He particles. We will show that in terms of the perturbative approach and the random phase approximation (RPA), the evaluated Fermi-liquid interaction parameters are in remarkably good agreement with experimental data on liquid 3He. Thus, our simple model, in contrast to very complicated and numerically correlated basis function model exploited by Finberg and co-authors [E. Finberg, Theory of Quantum Fluids (Academic Press, New York, 1969)], enables to reproduce the Fermi liquid parameters for liquid 3He. In addition, using the result we obtained in Ref. 1, we have qualitatively explained superfluidity of 3He under pressure.
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