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arXiv · hep-ph/9902304

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

W. Beenakker·F. A. Berends·A. P. Chapovsky
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Abstract

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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W. Beenakker, F. A. Berends, A. P. Chapovsky. 1999-02-18. One-loop QCD interconnection effects in pair production of top quarks. https://doi.org/10.1016/s0370-2693(99)00383-4

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