On Spin Projection of Fundamental Particles and Problem of Non-Conservation of CP-Parity

In the work [Chelnokov, previous no. of this journal], the operator of square of spin of fundamental particles is introduced and studied. In this paper, the root of this operator is extracted and the operator of spin projection is derived; the eigenvalue equation for this operator is also solved. A notion of the spin inversion is introduced and the problem of non-conservation of CP-parity is examined on this basis. Possible experiments for verifying the obtained results are proposed.