No abstract available

[en] The advances in experimental facilities and methods offer new opportunities for pushing down the limits on theoretically unexpected phenomena. These opportunities are as important as those offered by conducting experiments that are suggested by current theory. This talk concentrates on the latter, and in particular on the possible contributions of experiments carried out at intermediate energies with high intensity facilities. Areas discussed are: (1) precision tests of the Glashow-Salam-Weinberg (GSW) theory; (2) quark mixing and CP-violation; and (3) grand unified theories and neutrino oscillations

[en] The course was organized with the aim of giving a comprehensive panorama of the more recent developments in theoretical and experimental high-energy physics. Many different subjects were covered during the period of the school. Among them the phenomenology of the standard model, with particular emphasis on the latest experimental results from the CERN Spanti pS collider, neutrino physics, supersymmetry, supergravity, composite models and cosmology. Some of the lectures were dedicated to fields other than high-energy physics such as spin glasses, a new and very rapidly developing subject, and to specialized computers in theoretical physics. The basic working principles of e⁺e^- storage rings and hadron colliders were also reviewed. (orig./BBO)

[en] This chapter attempts to present some of the fundamental geometrical ideas at the basis of gauge theories. Describes Dirac Monopoles and discusses those ideas that are not usually found in more ''utilitarian'' presentations which concentrate on QCD or on the Glashow-Salam-Weinberg model. This topic was chosen because of the announcement of the possible detection of a Dirac monopole. The existence of monopoles depends on topological features of gauge theories (i.e., on global properties of field configurations which are unique to gauge theories). Discusses global symmetry-local symmetry; the connection; path dependence and the gauge fields; topology and monopoles; the case of SU(3) x U(1); and the 't Hooft-Polyakov monopole

[en] The Institute Nazionale di Fisica Nucleare (INFN) plays a significant role in physics research in Italy. This agency, which has an annual budget of over two million pounds agreed over a five year period, supports research programmes connected with nuclear and subnuclear physics. Unusually in the scientific community INFN is devoted solely to a subdiscipline of physics.This well defined sphere of activity, together with a compact organization enjoying good communications make INFN a role model for Italian Science generally. In this article, the current President reviews present and future projects in each of its four national laboratories. (UK)

[en] The decay properties of the D⁰ resonance are discussed

[en] The Joint Research Centre, Ispra, has been involved in fusion research since 1973. In July 1985 the Commission of European Communities - DG XII, following a policy of systematically evaluating its RandD activities, appointed a panel of external experts to evaluate the fusion technology and safety programme carried out at the Joint Research Centre. This report describes the work of the panel in evaluating the research performed by the JRC within the framework of its 1984-87 programme. The achievements of the previous programme, 1980-83, were also taken into consideration. The different research areas covered in the programme, i.e.: reactor studies, breeding blanket technology, structural materials studies, risk assessment and tritium laboratory studies, are described and a draft proposal for the period 1987-90 presented. The evaluation panel has been asked to assess the following aspects: the scientific and technical achievements of the programme, the contribution of the programme to the development of other Community policies, the role played by the JRC in the European fusion research (including NET) and in international collaborations such as INTOR. From its assessment the evaluation panel has made a series of recommendations for the current programme and for future work

[en] The possibility that the discrepancy between the pre-1971 and post-1971 measurements of the CP-violating parameter Vertical Bareta₊-Vertical Bar is a real effect is considered. The implications in the framework of various theoretical models are discussed

No abstract available

[en] The probabilities of emitting one or more prompt charged leptons in b and t decays and in the decay of a banti b or tanti t pair are computed and found to be large. Multilepton configurations can thus be used to identify the production of new flavours, and to obtain information on the weak mixing angles. (Auth.)