[en] In this paper we summarize new physics results of the 1983 run from the UA1 experiment at CERN. We report in the first part about events in which large missing transverse energy is associated with a neutral electromagnetic cluster or with a narrow hadronic jet. These events cannot be explained in terms of background or known physical processes. In the second section we discuss the unexpected features of the Z⁰ events i.e. their associated jet rate and the radiative Z⁰ decays. A comparison of hadronic activity in W and Z⁰ events shows an anomalous high jet activity in the Z⁰ events. 6 refs.; 19 figs.

[en] A review of experimental results obtained by UA1 and UA2 before the upgrading of the Proton-Antiproton Collider at CERN is presented. Topics covered in this review are the physics of the Intermediate Vector Bosons, heavy-flavour production, B⁰-antiB⁰ mixing, the search for the top quark, and searches for physics beyond the Standard Model

[en] The Large Electron Positron Collider (LEP) permits to study the building blocks of matter such as quarks and leptons. But with the installation of the Large Hadron Collider (LHC) it is expected to obtain information on regularities during the first moments of the universe (Big Bang) through the discovery of supersymmetrical particles. (HP)

[en] The CERN p bar p Collider has been the first accelerator to operate in a completely new energy domain, reaching center-of-mass energies an order of magnitude larger than those previously available with the intersecting Storage Rings (ISR) at CERN, or with the Positron-Electron Tandem Ring Accelerator (PETRA) at DESY and the Positron-Electron Project (PEP) at SLAC. Naturally there has been great interest in the searches for new physics in this virgin territory. Theorists have approached these searches from either or both of two rival points of view. Either they have had an a priori prejudice as to what new physics should be searched for, and what its signatures should be, or they have tried to interpret a posteriori some experimental observations. The basic building-blocks of new physics in the 100 GeV energy domain are jets j, charged leptons l, photons γ, and missing transverse energy E_T. Therefore searches have been conducted in channels which are combinations of these elements. It also shows some of the main a priori theoretical prejudices which can be explored in each of these channels. The layout of the rest of this paper is as follows. There are sections discussing each of the major prejudices: the Standard Model supersymmetry; extra gauge degrees of freedom; composite models; and other possibilities. Each of these sections contains a description of the motivations and characteristics of the new physics to be searched for, followed by a review of the searches made up to now at the CERN p bar p Collider. Finally, it summarizes the lessons to be learnt so far from searches for new physics at the CERN p bar p Collider, and previews some of the prospects for the next rounds of collider searches at CERN and FNAL

[en] Coulomb corrections are taken into account for calculations of nucleon-nucleon observables at E(lab) = 10 MeV using phenomenological phase shifts. (author)

[en] We present two high energy physics projects using large arrays of BGO crystals for measuring electromagnetic shower energies. One is designed for detailed studies of the tau (m/sub tau/ approx. 10 GeV) particles at CESR, i.e., for e⁺e^- physics around 10 GeV. The second detector will be built for the LEP storage ring for definitive studies of the neutral vector boson Z⁰ (m/sub Z/o approx. 93 GeV) and to investigate physics in the 100 GeV range

[en] The Large Hadron Collider (LHC) at CERN will provide proton-proton collisions at a centre-of-mass energy of 14 TeV with a design luminosity of 10³⁴ cm^-2s^-1. The design of an experiment for the LHC is guided by the physics objectives to search for particles predicted by the Standard Model, like the Higgs boson, and particles predicted by current theories that go beyond the Standard Model. The exploitation of the rich physics potential will be illustrated using the expected performance of the two proposed general-purpose pp detectors ATLAS and CMS. In addition to the discovery potential offered by multi-TeV pp collision a status of the overall LHC experimental programme will be given. (author) 13 figs., 3 tabs., 22 refs

[en] This report discusses the advantages of high luminosity running on the bb-bar system as a test of QCD and the quark-antiquark forces. The author limits himself to the cases of 1,000 pb/sup -1//year and 10,000 pb/sup -1//year, and what physics goals can be achieved at these integrated luminosity levels. A summary of theoretical spectroscopic predictions is presented, together with a detailed evaluation of the decays 3/sup 3/S-> ππ1/sup 1/P/sub 1/->ππγ1/sup 1/S/sub o/ and 1/sup 3/S/sub 1/->γ1/sup 1/S/sub o/. A brief discussion of other possible 'exotic' spectrosocpy is given

[en] Review of programs and results of investigations conducted at the CERN proton-antiproton collider is given. It is underlined that data of experiments with colliding p-barp beams confirm standard model predictions. Results of investigations into jet physics, W and Z particle physics and into detection of heavy flavour and new heavy quarks are presented

No abstract available