On the Threshold Behavior of Heavy Top Production
Mar, 1990
18 pages
Published in:
- Z.Phys.C 48 (1990) 613-622
DOI:
Report number:
- CERN-TH-5687-90
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Abstract: (Springer)
If the top is heavy, as now seems likely, the threshold behaviour is given by perturbative QCD. The QCD threshold interaction can be formulated in terms of a potential, attractive or repulsive depending on whether the is in a colour singlet or octet state. This gives a suppression factor for octet production. Singlet production is enhanced, both above threshold and, by resonance formation, below it. Whilee+e− annihilation only proceeds in the singlet channel, hadronhadron collisions contain a non-trivial mixture of the two. In this paper we review the relevant threshold factor formulae, and present phenomenological consequences for hadron colliders, current and future.- top: mass
- mass: top
- top: width
- top: electroproduction
- electroproduction: top
- top: hadroproduction
- hadroproduction: top
- threshold
- quantum chromodynamics: perturbation theory
- potential: nonperturbative
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