Non-resonant and electroweak NNLO correction to the $e^+ e^-$ top anti-top threshold

26 Feb 2018  ·  Beneke Martin, Maier Andreas, Rauh Thomas, Ruiz-Femenia Pedro ·

We determine the NNLO electroweak correction to the $e^+ e^-\to b\bar{b}W^+W^- X$ production cross section near the top-pair production threshold. The calculation includes non-resonant production of the final state as well as electroweak effects in resonant top anti-top pair production with non-relativistic resummation, and elevates the theoretical prediction to NNNLO QCD plus NNLO electroweak accuracy... We then study the impact of the new contributions on the top-pair threshold scan at a future lepton collider. read more

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High Energy Physics - Phenomenology