One-loop QCD interconnection effects in pair production of top quarks

Details One-loop QCD interconnection effects in pair production of top quarks One-loop QCD interconnection effects in pair production of top quarks

1999-02-10

arxiv.org/abs/hep-ph/9902304v2

Phys.Lett. B454 (1999) 129-136

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, LaTeX2e (uses axodraw.sty), 2 ps figures included; some numerical results changed, reference added

Scientific paper

10.1016/S0370-2693(99)00383-4

We calculate the one-loop non-factorizable QCD corrections to the production and decay of pairs of top quarks at various collider experiments. These non-factorizable corrections interconnect the different production and decay stages of the off-shell top-pair production processes. This in particular affects the invariant-mass distributions of the off-shell top quarks, resulting in a shift of the maximum of the distorted Breit-Wigner distributions. Although the non-factorizable corrections can be large, the actual shift in the mass as determined from the peak position of the corrected Breit-Wigner line-shape is below $100\MeV$.

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