[en] In this talk we consider the wonderful things that monopoles can do to nuclei by examining nuclear physics in strong magnetic fields. We have seen that monopoles can bind nuclei. We shall investigate the following other possible processes: (1) mixing of singlet and triplet states of deuteron-like positronium; (2) production of a new kind of nuclear matter with nucleon moments oriented in the field; (3) catalysis of nuclear fission; (4) catalysis of nuclear fusion (with implications for solar neutrinos); and (5) enhancement of forbidden decays like triplet positronium, e.g. fission products

[en] The development of theories of particle interactions, both electroweak and strong, is briefly reviewed with regard to their relationship with experimental observation

[en] The review of mesons covers strangeness and spin mass splittings, exotic hadrons, the strange axial vector mesons (Q's), new features of high mass spectroscopy, mixing of pseudoscalar mesons, meson spectroscopy and the charge of the quark, and SU(6) revisited. 43 references

[en] Our approach considers the model as a possible bridge between QCD and the experimental data and examines its predictions to see where these succeed and where they fail. We also attempt to improve the model by looking for additional simple assumptions which give better fits to the experimental data. But we avoid complicated models with too many ad hoc assumptions and too many free parameters; these can fit everything but teach us nothing. We define our constituent quark model by analogy with the constituent electron model of the atom and the constituent nucleon model of the nucleus. In the same way that an atom is assumed to consist only of constituent electrons and a central Coulomb field and a nucleus is assumed to consist only of constituent nucleons hadrons are assumed to consist only of their constituent valence quarks with no bag, no glue, no ocean, nor other constituents. Although these constituent models are oversimplified and neglect other constituents we push them as far as we can. Atomic physics has photons and vacuum polarization as well as constituent electrons, but the constituent model is adequate for calculating most features of the spectrum when finer details like the Lamb shift are neglected. 54 references

[en] Tests of CP violation using B decays into CP eigenstates can be improved by using events normally rejected because of incomplete information. A search for lepton asymmetry in decays Υ(4S) → B + bar B → (K_S + J/ψ) + (lepton ^± + X) can be improved by including other (c bar c)K_S events where the (c bar c) pair is not bound in a J/ψ but in some other state like ψ' or η_c and where the lepton asymmetry is predicted to be the same as for (K_S + J/ψ), other (c bar c)K_S events which are not fully reconstructed and (c bar c)K_L events where the K_L pair is not detected and which are predicted to have the opposite lepton asymmetry from corresponding K_S events. The information from these additional events can give improved statistics if suitable cuts can be found to improve signal/noise. The opposite asymmetry predicted for K_L events can test spurious lepton asymmetries due to systematic errors. 3 refs

[en] The previously noted difficulty of obtaining Dirac magnetic moments in composite models with two basic building blocks having different charges is combined with the observation by Shaw et al., that a light bound fermion state built from heavy constituents must have the Dirac moment in a renormalizable theory. The new constraint on any model that builds leptons from two fundamental fields bound by non-electromagnetic forces is that the ratio of the magnetic moment to the total charge of the bound state is independent of the values of the charges of the constituents; e.g., such a bound state of a spin-1/2 fermion and a scalar boson will have the same magnetic moment if the fermion is neutral and the boson has charge -e or vice versa

[en] Nonleptonic weak decays of strange hadrons are complicated by the interplay of weak and strong interactions. Models based either on symmetry properties or on the selection of certain types of diagrams are both open to criticism. The symmetries used are all broken in strong interactions, and the selection of some diagrams and neglect of others is never seriously justified. Furthermore, the number of related decays of strange hadrons is small, so that experimental data are insufficient for singificant tests of phenomenological models with a few free parameters. The discovery of charmed particles with many open channels for nonleptonic decays has provided a new impetus for a theoretical understanding of these processes. The GIM current provides a well defined weak hamiltonian, which can justifiably be used to first order. The QCD approach to strong interactions gives flavor-indpendent couplings and flavor symmetry broken only by quark masses. In a model with n generations of quarks and 2n flavors, a flavor symmetry group SU(2n) can be defined which is broken only by H/sub weak/ and the quark masses.Here again, the same two approaches by symmetry and dynamics have been used. But both types of treatment tend to consider only the symmetry properties or dominant diagrams of the weak interaction, including some subtle effects, while overlooking rather obvious effects of strong interactions

[en] Hadron and quark exchange contributions to spin symmetries at 90⁰ in hadron elastic scattering are investigated. The angular distribution of scattering cross sections is considered for incident protons with contributions from nonflip and double-flip amplitudes for states of parallel and antiparallel spins. 5 refs

[en] New signatures for detection of non-quarkonium mesons are considered, including K⁺K⁺π⁺π^- and Ksub(s)Ksub(s)π⁺π⁺ decays for states where K⁺K⁺ and K⁺Ksup(*)⁺ decays are forbidden, and A-dependence of Ssup(*) and delta production on nuclei by kaon beams. Analysis of OZI rule shows that only selection rules forbidding hairpin diagrams are valid and that phi phi production by pion beams is not a serious OZI violation indicating presence of glueballs. (author)

[en] The analysis of the EMC result on the quark contribution to the spin of the proton has been challenged because of the use of SU(3) symmetry is shown not to be needed to obtain peculiar results about these quark contributions. The analysis without assuming flavor symmetry allows the quark contribution to the proton spin to be large, but only if it is due to the strange quarks, with the nonstrange quark contribution opposite to the spin of the proton. Recent data from the European Muon Collaboration have been interpreted to suggest that the spin of the proton does not come from the quarks but from the some other source. This interpretation has been questioned, both because of the errors in extrapolating to x = O and because of the use of flavor SU(3) symmetry to relate spin distributions within the proton to weak semileptonic axial vector decays of hyperons. We consider here the use of flavor symmetry. 3 refs