[en] The newly discovered narrow resonances called psi(3105) and psi'(3695) are studied assuming that the psi is the I = 0, Y = 0, uncharmed heavy member of the ground state vector meson belonging to a 15 + 1 representation of SU(4) group. The psi' may be taken as a radial excitation of the psi. The general SU(4) mass formulas, SU(4) particle mixings, and the possible selection rules involved are examined in a purely algebraic way within the theoretical framework of asymptotic SU(4), the chiral SU(4) x SU(4) charge algebra, and the simple mechanism of SU(4) and chiral SU(4) x SU(4) symmetry breakings which is characterized by the presence of the ''exotic'' commutation relations. One also discusses, through asymptotic SU(4) and the SU(4) charge-charge density commutation relations, the psi → e⁺e^- decay in connection with the already known ω → e⁺e^-, phi → e⁺e^-, and rho → e⁺e^- decays. One discusses in detail for the two possible quark charge assignments which are consistent with the suppression of the strangeness changing weak neutral current. In contrast to the hadronic decays of the psi which are first forbidden, the allowed nature of the psi → e⁺e^- decay gives a clean information

[en] Present status of algebraic approach (including the conventional group theoretical method) to new boson resonances in SU(4) is reviewed. The mass formulas, intermultiplet mass relations and the derivation of selection rules for the new resonances are discussed. It is stressed that one does not need to subscribe to the perturbation theoretic point of view towards SU(4) breaking. A possible relation between the SU(3) and SU(4) world is demonstrated. Some crude discussion is given to the new possible P-wave states in the 3.4 to 3.5 GeV region and the problems associated with the X

[en] The recombination model predictions for baryon production, using modified Kuti-Weisskopf structure functions, are in good agreement with the pp and πp collision data. The indistinguishability of sea quarks naturally accounts for the difference in the p and anti p spectra in the pion fragmentation region. 4 figures, 2 tables

[en] A systematic study of the 1^-- → 0^-+ + γ and 0^-+ → 1^-- + γ is presented in the framework of asymptotic SU(4) and SU(4) charge-current commutation relation. A special emphasis is placed on the phi/sub c/ → eta/sub c/γ decay. Also the decays of phi/sub c/ → πγ, etaγ and eta'γ, and eta/sub c/ → rhoγ, phiγ and ωγ, which emerge through the breaking of the Okubo-Iizuka-Zweig selection rule, are discussed

[en] The recombination model predictions for baryon production, using modified Kuti-Weisskopf structure functions, are in good agreement with the pp and πp collision data. The indistinguishability of sea quarks naturally accounts for the difference in the p and anti p spectra in the pion fragmentation region. 4 figures, 2 tables

[en] The general feature of the ββ decay is reviewed and the recent theoretical progress is discussed. The theoretical framework is in better shape now. The only problem left is the accuracy of the closure approximation. Aside from that, the evaluation of the nuclear matrix element is problematic. If the geochemical data is correct, the theory should be drastically modified for the medium-heavy nuclei. In any event, the direct measurement of the (ββ)/sub 2nu/ mode gives the definite answer and corrects the nuclear matrix element. The background evaluation to the (ββ)/sub 2nu/ mode such as from the Majoron is important. The method to discriminate the background is under consideration

[en] An approximate analytic solution of the equations of motion of the 't Hooft magnetic monopole model is proposed. Virial type global tests are carried out for the solution. Then, the monopole mass, energies of the vector field A/sub mu/sup a/, Higgs field phi/sup a/ and interaction are computed in closed form. The form factors of A/sub i/sup a/ and phi/sup a/ in a quantized version are also calculated

[en] Approximate vortex-line and soliton solutions of the Higgs-type Lagrangian are obtained analytically, and the magnetic field, magnetic energy and its root mean square radius, Higgs energy, and interaction energy between the vector field A/sub μ/ and the Higgs scalar phi are calculated. The soliton solution for another case is commented on

[en] These proceedings on nuclear beta decay and neutrinos include topics on double beta decay; nuclear matrix elements; tritium beta decay and atomic and molecular effects; electron capture; heavy neutrino search; neutrino mixing and V + A interaction; neutrino oscillation; solar neutrino flux; theory of the neutrino; and future prospects

[en] It is argued that the ansatz T/sub i//sup i/ = 0 (trace of the energy momentum tensor over relevant space coordinates) may be useful in obtaining analytic solutions to nonlinear Lagrangian models. Previously known exact solutions to models with vortex lines, magnetic monopoles, or instantons can be obtained naturally from the equations of motion supplemented by this ansatz