Abstract
Considered primarily here are those phenomena which appear in the energy range opened to experimentation by the CERN \( p\bar p \) Collider1. The proton-antiproton centre-of-mass energy is of the order of 600 GeV. This, however, corresponds to typically 100 GeV at the quark-antiquark level, the goal in energy set by the electroweak theory. The discovery of the W and Z in 19832 was indeed the dominant highlight of the research programme on that unique (by then) instrument, during the 1981–86 period. Much could be learned about the properties of these particles. This is covered in the lecture notes of L. Di Lella, in these proceedings3. Also covered there is the present status of the hunt for the top quark. In these notes we complementarily cover three different processes considered presently as beautiful tests of perturbative QCD4 We study in turn the production mechanism of the vector bosons, the production of hadronic jets at large momentum transfer and the question of the excitation of heavy flavour, in particular beauty. In all three cases, the production process at the parton level is hard, involving a momentum transfer of the order of at least 5 GeV, thus justifying the use of perturbative QCD. We then turn to a survey of soft processes which involve the dominant part of the total cross-section. Here we do not have yet a theory but we have a good phenomenology. Some features have changed between ISR energies5 and present collider energies. In particular one witnesses some expected merging between soft and hard processes as many partons become energetic enough to interact incoherently.
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© 1988 Plenum Press, New York
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Jacob, M. (1988). \( p\bar p \) Collider Physics, Present and Prospects. In: Lévy, M., Basdevant, JL., Jacob, M., Speiser, D., Weyers, J., Gastmans, R. (eds) Particle Physics. NATO ASI Series, vol 173. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0977-2_13
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