No abstract available

[en] A review of the different approaches of the recoil and finite range effects in heavy-ion transfer reactions is given. One nucleon and two nucleon transfer reactions have been considered. It is shown how phase approaches are related to each other and what results they have yielded

[en] We use the rishon structure of the ordinary mesons and the experimentally well established decay modes of these particles to obtain their graphical structure. A remarkable regularity is found and allows a prediction on the decay modes of the eta(c) and eta'(c) charmonium

[en] The quarks is defined as a flavour vector state in the C colour space and the antiquark as a vector in the C* dual space. The observables become scalar in the colour-space built even with a vector and a covector (meson) or with a vector and a pseudo-vector (baryon). The pseudo-vector is responsible of the Pauli principle existence and allows a comprehension of the distinction between baryons and mesons. The investigation of the strong interaction as the exchange of gluons leads to a crossing rule in contradiction with the JOZI rule in the general case. The existence and allowed decay of different sort of baryium is then considered

[en] The Graphical Spin Algebra has been shown to be applicable in a cartesian coordinate system without major modification. Then the (G.S.A.) allows a new and very easy approach of the usual vector analysis. Some examples of application are given

[en] The Graphical Spin algebra has been shown to be applicable in a cartesian coordinate system without major modification. Then the (G.S.A.) allows a new and very easy approach of the usual vector analysis. Some examples of application are given

[en] Starting from the schematic models of Harari and Shupe we propose a geometrical approach of the leptons. The model is extended to consideration of the force mediating bosons

[en] In the rishon model the leptons and the quarks can be classified in either doublets or quadruplets of a SU(2) group. Gauge invariance leads to different charged current interactions in the doublet and the quadruplet cases. Demanding that the neutral currents be the same in the two cases, one obtains relations between the different charged current couplings to leptons and quark; moreover, if these transform as linear combinations of doublets and quadruplets, one can estimate the mass of the gauge boson responsible for baryon decay to be not larger than 10⁵GeV. A SU(2)sub(L) x U(1) model is treated in detail

[en] Some basic relations for the representation theory and the Wigner-Racah algebra of a finite or compact continuous group are discussed and transcribed in terms of diagrams. Special emphasis is placed on the case of a simply reducible group and all the diagrams are applicable to SU₂ without any change

[en] We propose a concrete representation of leptons and quarks in different generations in the geometrical approach to the rishon model where rishons behave as the fundamental representations of the SU(3)sub(C) x SU(3)sub(H) group. The model allows a unified description of both hadronic and leptonic decays of elementary particles