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

W. Beenakker, F.A. Berends, A.P. Chapovsky
1999 Physics Letters B  
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
more » ... large, the actual shift in the mass as determined from the peak position of the corrected Breit-Wigner line-shape is below 100.
doi:10.1016/s0370-2693(99)00383-4 fatcat:46rexouqurc5zbmjjd4w3h5ice